Quantum Field Theory: From Operators to Path Integrals

Book Description

A unique approach to quantum field theory, with emphasis on the principles of renormalization Quantum field theory is frequently approached from the perspective of particle physics. This book adopts a more general point of view and includes applications of condensed matter physics. Written by a highly respected writer and researcher, it first develops traditional concepts, including Feynman graphs, before moving on to key topics such as functional integrals, statistical mechanics, and Wilson's renormalization group. The connection between the latter and conventional perturbative renormalization is explained.

Quantum Field Theory is an exceptional textbook for graduate students familiar with advanced quantum mechanics as well as physicists with an interest in theoretical physics. It features:
* Coverage of quantum electrodynamics with practical calculations and a discussion of perturbative renormalization
* A discussion of the Feynman path integrals and a host of current subjects, including the physical approach to renormalization, spontaneous symmetry breaking and superfluidity, and topological excitations
* Nineteen self-contained chapters with exercises, supplemented with graphs and charts

Customer Reviews:

Extremely solid for self-teaching.......2006-04-06

This book is an ideal introduction to quantum field theory for a graduate student. Assuming a strong background in basic quantum mechanics and classical mechanics, Huang develops quantum field in a methodical fashion. In contrast to other popular quantum field theory books (such as Peskin) Huang doesn't leave out important details, especially with regard to the mathematics behind spinor fields. Plus the book is very readable.

A good introduction to the physics behind renormalization.......1999-05-16

A very good introduction to QFT. It starts with a rather classical account of QED, then develops renormalization and applies it mainly to statistical physics. So the text does not cover non-abelian gauge theories, and is not sufficient for readers who learn QFT for particle physics applications. But the exposition of renormalization is really excellent and complete. I liked the exceptional clarity and lucidity of most calculations, and the excellent set of problems. Solving them all extends the book's scope far beyond the table of contents.

Mind into Matter: A New Alchemy of Science and Spirit

Average customer rating:

Quackery
Essential for all the Bleepers Out there.
Repetitive and redundant
In the Beginning Was the Word
An Inspiring View of Consciousness & Reality

Mind into Matter: A New Alchemy of Science and Spirit
Fred Alan Wolf
Manufacturer: Moment Point Press
ProductGroup: Book
Binding: Paperback

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ASIN: 0966132769

Book Description

Alchemists of the old attempted to make sense of the universe--to discover the connection between mind and matter. Some of today's scientists, in particular quantum physicists, are doing the same. In his latest contribution to the study of consciousness, physicist Fred Alan Wolf reveals what he calls the new alchemy-- a melding of the ideas of the old alchemists and the new scientists to reach a fuller understanding of the mind and matter.

Customer Reviews:

Quackery.......2007-05-13

Okay, so my mind controls and is in charge everything that I experience, including interactions with other people. So what do their minds control? Taken to its logical conclusion, everyone else I am with is controlling my life as well. So who's in control? Feel the love, but skip this metaphysicla diarrhea.

Essential for all the Bleepers Out there........2006-10-30

Contains many truths. You will appreciate this book very much if you:
1) Have seen "What the Bleep We know" movie
2) Have been taking advanced yoga classes or other practicing any other discipline
3) Have read any of Robert Anton Wilson's books
4) Have favourited "Matrix" as one your all time best movies
5) Have seen "The Secret" movie
6) Have been a Cabbalist or a Free Mason
7) Have been a Ideological Anarchist
8) Have been a Theologian
9) Have been a Physicist

Mind into Matter is a book with many exotical ideas and interpetations (some sceptics may say convenient extrapolations) but it is an interesting backgorund for the things that may follow in the next years.

One more book in your personal library of enlightment.

Repetitive and redundant.......2006-01-12

Of the thousands of books I've read in my life, and the hundreds I've actually purchased from Amazon.com, this is the first time I've felt strongly enough about a book to write any sort of review.

I kept waiting for the author to get to the point. He rambled and meandered and didn't tell me anything new whatsoever. He used the words "alchemy" and "alchemists" in almost every single paragraph of the book.

Skip this book - you'll get MUCH more out of the "Cosmic Trigger" series, "Quantum Psychology", or "Prometheus Rising" by R.A. Wilson.

In the Beginning Was the Word.......2005-11-02

Dr. Fred Alan Wolf has once again pricked our consciousness in order to awaken us to realities already within our grasp. In Mind Into Matter he explains in lay terms how thought transmutates into the material, and how we can therefore truly create not only our world, but the world we leave to our children. In essence, a "you-niverse" Recent centuries of scientific development have attempted to understand and describe all creation strictly as objective science, to the detriment and ignorance of the subjective. It's time the pendulum swung back a bit. By melding the ideas of the old alchemists with those of the new scientists, Wolf uses the language of quantum physics to describe what the alchemists and Qabalists have long called the Magnum Opus - the Absolute Realization.

I was fortunate enough to meet Dr Wolf to discuss his work in the company of an eclectic group that included local physicists, physician and mind-body guru Deepak Chopra, as well as musician Dave Stewart. All of this diverse and highly creative assemblage were mesmerized. As we dissolved into reading Rumi, quoting Newton, and evaluating neurophysiologic experiments, it became increasingly clear how Wolf's concepts collate all of that wisdom. Wolf's work should be studied by all who wish to develop consciousness to a higher level not only to contribute to their own well being, but that of the planet.

Highly recommended for anyone, regardless of scientific background.

An Inspiring View of Consciousness & Reality.......2005-01-11

I'm very picky about books that deal with the relationship between physics and consciousness, but this one I like. In books of this sort, the understanding of physics is often too limited, while on the other hand there is frequently very little appreciation for the depth of ancient metaphysical traditions. This book does a very good job of working with both sides in a highly intelligent yet readable manner.

For anyone into Hermeticism or Kabbalah, it is especially noteworthy that Wolf has organized a signfiicant portion of his book around an esoteric understanding of the Herbrew letter-numbers. The particular system he uses was developed by Carlo Suares, a little known yet influential mystic, author, artist and somewhat unorthodox Jewish Kabbalist. Wolf met Suares and began learning about his ideas in the 1970s. Suares' greatest contribution to Kabbalah was an interpretation of the letter-numbers as representations of recurring dynamics and patterns in terms of both consciousness and physics. Suares' book, The Cypher of Genesis, would be a good introduction to his theory and practice of Kabbalah, and an excellent companion to Mind into Matter.

Of course, Wolf's own qualifications in theoretical physics are well established. For more than two decades he has been a consistent leader in challenging the long worn-out mindset that existence is best experienced, explored and explained as essentially an accidental and random interaction of quanta. In this book Wolf allows himself to dive a little deeper into the spiritual implications of his work. Perhaps the best thing about Wolf's writing is that it is more than scientifically sound and philosophically poignant, it is actually inspiring literature! Wolf artfully weaves together insights from a wonderful scope of human inquiry - physics, depth psychology, mysticism, and alchemy - in a way that is head and shoulders above the slipshod speculations common to authors of the "New Age" genre.

Fred Alan Wolf's works will stand the test of time, and this one should be included among his essential readings.

Electronic Structure: Basic Theory and Practical Methods

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A Gr8 Book on DFT Concepts
Excellent book
Not impressive
Outstanding

Electronic Structure: Basic Theory and Practical Methods
Richard M. Martin
Manufacturer: Cambridge University Press
ProductGroup: Book
Binding: Hardcover

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ASIN: 0521782856

Book Description

The study of the electronic structure of materials is at a momentous stage, with the emergence of new computational methods and theoretical approaches. This volume provides an introduction to the field and describes its conceptual framework, the capabilities of present methods, limitations, and challenges for the future. Many properties of materials can now be determined directly from the fundamental equations of quantum mechanics, bringing new insights into critical problems in physics, chemistry, and materials science.

Customer Reviews:

A Gr8 Book on DFT Concepts.......2007-07-05

I like this book and would recommend it to any beginner into density functional theory. It explains all the modern electronic structure techniques in a rather simple language. Its much more easier and quicker than going into hundreds of papers and not knowing where to start.

The biggest issue with this book is a rather poor organisational structure to the book. That's why I've given it a 4/5 rating. There are some concepts that have been easily thrown in at the end, into the appendices.. and having to turn pages too frequently can be annoying.

But the good work has been done & I'd ask Mr Martin to re-organise the content.

This book has the potential to be a classic.

Excellent book.......2006-03-21

As a graduate student attempting to learn density functional theory and its use in computer programmes, I have found this book to be an excellent addition to my library. Well structured and written.

Not impressive.......2005-06-30

Although the topics the book embrasses are current and essential for practising chemists, physisists and materials scientists the pedagogic care with which it explains some of the topics is poor.

The author makes the assumption that the reader is familiarized with the heavy mathematical formalism and notation which is commonplace in specialized physics articles but fails to remember that graduate students that don't have a physics background, and come from other schools of thought such as chemistry, biochemistry or materials science, might be target readers.

For instance the book's introduction to Hartree-Fock theory must be the most complicated I've ever seen with constant recourse to Dirac's delta function (without even revealing its presence, stating simply that it should be there). The link between DFT and statistical thermodynamics although interesting is not essential for the heart of the discussion. Some classic program applications like Siesta are presented but you get the feeling that it's just for show off.

All in all if you're a physicist with some years of experience in the field of planewave computation you might find the book interesting.

Otherwise if you're a beginner like me forget it! The book by Efthimios Kaxiras (Atomic and Electronic Structure of Solids) is more revealing and pedagogic and supplies every detail in the mathematical formalism. Some physicists with a more chemical sensitivity such as Harrison, chemists such as Roald Hoffmann, Jeremy Burdett or Michael Springborg or materials scientists like Adrian Sutton or David Pettifor are better suited for the novice.

Outstanding.......2004-07-07

This book was recommended to me to help me in my research, and has turned out to be one of the best recommendations I have ever received. This is a great book; by far the best I have come across on the topic of computing the properties of condensed phase materials by quantum mechanical simulations. Here are the reasons why.

1. The chapters are well laid out and one chapter flows neatly to the next.

2. The math is kept to a minimum; the author makes a point of communicating important principles and ideas in concise sentences without resorting to derivations. This is ideal for engineers like me; who by training do not know that much math as compared to physicists who specialize in the solid state.

3. Important ideas are clarified up front. Many texts will lead the reader through long and windy paths of proofs and logic before arriving at the conclusion; thereby losing their reader in the process. Not here; important points are stated clearly at the beginning and at the end of each section.

4. Compare, contrast, and context. There are many ideas, models, approximations, and theorems that have been developed in the past century related to electronic structure. Many of these are closely related to each other in their inspiration, derivation, practice, and/or applications. This book makes the connections between the different concepts. For a non-expert reading through the electronic structure literature, terms like APW, OPW, PAW, LAPW, LMTO, etc... can be quite confusing if not placed within an overriding context. This book provides that context.

5. Good use of appendices. Electronic structure is a lot like politics; most practicioners in either field did not receive formal educations in the subject, but instead got into it under the apprenticeship of other people. This is reflected by a lot of literature by those who succeeded in the field; most of it good in showing of the authors' achievements, but generally useless in preparing the next generation of practicioners. For electronic structure, this is manifested by the many books that require prior knowledge of quantum, thermo, crystallography, mat sci, etc.. In effect, these books were written by experts to be read by other experts. Not this book. Basic ideas are kept in the text; and specific proofs and derivations are kept in the appendices. The result is a text that is much easier to read than most others.

6. The book is concept driven; not application driven. Most texts in materials simulations are actually a compilation of chapters written independently by multiple authors. Each chapter might be given a general title; but the text will be bias towards the research of its authors. For example, a chapter on surface calculations might focus entirely on adsorption, or relaxation/reconstruction, or optical properties; but surely not touching all these subjects. This book does not do this; each chapter is driven by basic concepts, and one concept leads to the next.

Book Description

Many research groups are now attempting to understand how the properties of systems ranging from small molecules to proteins and glasses are determined by the energy landscape. This book provides a self-contained account of energy landscape theory and how it is applied in studies of clusters, biomolecules and glasses. Beautifully illustrated in full color, the volume is geared to graduate students as well as professionals.

Customer Reviews:

A unique effort..........2006-02-19

Potential energy surfaces are instrumental in all aspects of nanoscale phenomena and they are well suited to be treated as a unifying theme for the study of chemical physics. In this respect, this book is unique... The topics it tackles, while interest to many researchers in manifold fields, have never been distilled into a single volume. And this first effort deserves kudos.

Each chapter(there are 10 chapters in the whole book)is supported with an exhaustive list of references and is reasonably self contained. Moreover, there is an immediate sense of coherence and the topical flow is rather well laid out. However, it is not a textbook with all that it implies. Wales provides a updated (as of the time of his writing (2003)) account of various topics, but none of them are treated assuming a classroom style. However, the reader is referred to the pertinent literature with valuable remarks as to what is to be found in which particular reference. The proofs to the equations are largely avoided but their origin and the physical implications are given a fair treatment. The required
mathematical background to follow the text is rather modest, while the wide spectrum of topics covered curbs its potential as a real page turner for the novice.

The illustrations are abound and in color which is a definitive plus. The binding and the paper quality is first class. The typeface is Donald Knuth`s Computer Modern with 11/14pt letter size, and this genuinely alleviates the reading process. My only quibble is the uneven quality of the images permeating the text as some of them have been culled from different sources.

I think the book serves its purpose very well and it is a good introductory exposition to a subject with utmost importance in nanoscience. I highly recommend it to anyone whose work involves materials science, chemisty or physics.

Can't get enough.......2004-04-11

Wales must have cloned himself multiple times in order to have found time to have written such a comprehensive book. I'll leave the science for people smarter than I to judge, but I'm giving it 5 stars based on its visual impact alone. I just can't get enough of his beautifully created graphics of undulating potential energy surfaces and cluster rearangement pathways (to name but two examples). Wales is showing us the elegance of his chosen field- and in a way that's simple enough for us dullards to appreciate. I wonder if he's considered a second career in designing topologically interesting furniture, upholstered in only the finest convex polyhedra. This book will no doubt become required reading for those in the molecular simulation community and will be especially ideal for those starting out on their phd's.

Book Description

This comprehensive textbook utilizes Green's functions and the equations derived from them to solve real physical problems in solid-state theoretical physics. Green's functions are used to describe processes in solids and quantum fluids and to address problems in areas such as electron gas, polarons, electron transport, optical response, superconductivity and superfluidity.
The updated third edition features several new chapters on different mean-free paths, Hubbard model, Coulomb blockade, and the quantum Hall effect. New sections have been added, while original sections have been modified to include recent applications.
This text is ideal for third- or fourth-year graduate students and includes numerous study problems and an extensive bibliography.

Customer Reviews:

Good book but so much money.......2006-07-22

This book is massive and covers a huge spectrum of material. Probably not cost effective in comparison to Fetter and Walecka unless you get it for under eighty bucks. I enjoyed it quite a bit until the Postal Service stole it from me.

Containing too many misprints........2001-11-19

Unfortunately, the 3rd edition of Mahan's book contains enormous number of misprints. Sometimes, it is impossible to understand what is meant by the author without consulting the previous edition. For example, in Sec. 4.1.5. the author refers in the text to the equation which apparently should be between Eqs. (4.126) and (4.127) but which had been omitted. At the same time, some evident drawbacks of the previous edition have not been corrected. For example, the definition of the thermodynamic average used in Sec. 3.6 is different from that used in the previous sections, although it is not mentioned in the text. Despite the book is an excellent introduction into the field of Many-Particle Physics, I would recommend to the customer to either buy the previous edition or to wait for a new one.

Bien detaille, comprehensible........1999-03-16

Un excellent livre sur un sujet d'actualite. G. Mahan discute de nombreuses en detaillant a chaque fois les etapes necessaires et en ne negligeant pas les explications ni les liens entre les differentes theories. Vu le prix, courez a votre bibliotheque pour vous le procurer!

QED: The Strange Theory of Light and Matter (Princeton Science Library)

Average customer rating:

A wonderful little book!
Finally understood refraction
I want to love this book but can't
Very readable.
Quantum mechanics for the intelligent layman

QED: The Strange Theory of Light and Matter (Princeton Science Library)
Richard P. Feynman
Manufacturer: Princeton University Press
ProductGroup: Book
Binding: Paperback

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ASIN: 0691125759

Book Description

Celebrated for his brilliantly quirky insights into the physical world, Nobel laureate Richard Feynman also possessed an extraordinary talent for explaining difficult concepts to the general public. Here Feynman provides a classic and definitive introduction to QED (namely quantum electrodynamics), that part of quantum field theory describing the interactions of light with charged particles. Using everyday language, spatial concepts, visualizations, and his renowned "Feynman diagrams" instead of advanced mathematics, Feynman clearly and humorously communicates both the substance and spirit of QED to the layperson. A. Zee's new introduction places both Feynman's book and his seminal contribution to QED in historical context and further highlights Feynman's uniquely appealing and illuminating style.

Customer Reviews:

A wonderful little book!.......2007-07-15

In his Introduction to this wonderful "extra-difficult popular book ", A.Zee divides its prospective readers in three groups:1)-students who might be inspired by this book to go on and master QED.2)- intelligent laypersons curious about QED and 3)-professional physicists. Personally, I fall between groups 1 and 2: I have been a "student" of physics all my life, but at the same time I'm just a "layperson", since physics is not my specialty.
Having said that, I consider that Feynman has succeeded in conveying the basic ideas of QED to the "intelligent layperson", but I also believe that very few laypersons will finish reading this book. On the other hand, whoever finishes reading it properly, "mulling over each sentence carefully", would end up having a correct understanding of QED. And Feynman accomplishes this feat without once mentioning fermions, bosons or leptons! He makes an exception for baryons, though!
Of course, things would become much easier when the reader has some mathematical background, like knowing what vectors and complex numbers are. Then he or she will know how to add two "Feynman arrows" without there being any need to tell him or her to "attach the head of one arrow to the tail of another". The reader would also know that "shrinking and turning" is nothing but the multiplication of two complex numbers!
There is also one thing I would like to point out about Feynman's remark at page 15 regarding the behavior of light as particles("I'm telling you the way it does behave-like particles.")Those little Feynman arrows, turning and stopping between two points of a path, why do they turn at different speeds for different colors? Neither Feynman nor QED tells us anything about it, and it remains a mystery. For me, those arrows are nothing but the old "Fresnel vectors", that are used to represent a sinusoidal function of time in old classical physics. The length of the vector is the amplitude of the sinewave, and its projection on the reference axis gives the value of that function at any given time. As for the angular speed of rotation, it is the frequency of that sinewave times 2 pi. I cannot understand light or electromagnetic fields without this concept of frequency, and consequently of wavelength: this is why the stopwatch turns faster for blue than for red light. Besides, waves are used in Quantum Field Theories to represent all elementary particles, so why not photons as well? And what happened to the old W=h.c/lambda, if there be no more lambda?And how does one explain the Doppler effect and the cosmological redshift without a wave? Feynman probably would have been able to find an explanation of these effects without resorting to the wave concept, but there are very few Feynmans around...So dear reader, if you know how to explain the Doppler shift without using waves, please let me know!
All in all, this book is a must read for all those who are curious about modern physics, but who cannot understand the "real thing", with all its details and equations. This is why I strongly recommend it.

Finally understood refraction.......2007-04-17

When I was a senior in high school, I asked my physics teacher why light bent when it entered a lens. He responded with an analogy about soldiers marching on a field and entering a marsh. The first soldiers entering the marsh would slow down and "bend" the column until all the soldiers were in the marsh.

The analogy made no sense to me because we were talking about light, not soldiers. He responded that light travels in waves and if I viewed the soldiers as a wave front, I could understand his analogy. I left the conversation feeling very stupid for not "getting it." and thinking the analogy had so many holes in it. For example, it didn't explain why the lens was a marsh as far as light goes.

It wasn't until I read QED that I realized I didn't get the soldier analogy because my teacher was wrong - light doesn't travel in waves, it travels in discrete little packets called photons.

In QED, Feynman opens his first chapter by saying a couple of things. First he tells you that the theory he's going to describe to you has been experimentally verified out to 10 decimal places so it's probably right. He then gives you a quick review of what matter is and then tells you "light comes in particles. Not waves, particles." No wavicles, just little bits of light. He tells you that photons go from place to place, an electron goes from place to place and the electron will sometimes either absorb or emit a photon. From that basis, the rest of the book shows how that model explains why light bends when it enters a lens, why mirrors reflect, why oil slicks show different colors, why peacock feathers iridesce along a with host of other phenomena. He also explains why light has wave-like properties despite the fact that light comes in packets.

The first reviewer is right - there are questions left unanswered but that doesn't diminish the book. The framework Feynman develops in four chapters gives you a clear mental image of what's going on. Bohr and Pauli disliked Feynman's approach because it violated the Copenhagen approach of eschewing all models. In their view, only mathematics would suffice to understand quantum mechanics. I for one, am very glad Feynman ignored them, developed his approach and eventually gave the 4 lectures that are the basis of the book.

If you think light travels in waves, read this book. It's truly wonderful. If you're as dumb as I am, you'll have to read it multiple times but it's definitely worth it.

I want to love this book but can't.......2007-04-11

Yes the book explains QED without any math, but it doesn't really explain it very well. I admire what Feynman is trying to do, but I don't believe he succeeds. I'll give one example. The book is built around using vector addition and multiplication to show how to come up with probability sums and products. So far so good. The problem is that we never get an explanation for why the vectors point the way the do, are rotated just so, etc. Without that it's simply voodoo, and nothing has been explained.
It's not that you'd need math for any of that. You wouldn't. It's not the lack of math that leaves the reader in the dark, it's simply Feynman's not having the time to elaborate given the lecture format. Twenty pages on how waves work and reinforce and cancel etc. would at least provide the frame work for understanding more or less what is going on in the vector spinning.
Feynman certainly made an amazing use of the time he had in the brief lecture series the book is drawn from, but unfortuantely a brief lecture series aimed at the scientifically illiterate is just not a reasonable forum for presenting even a very basic understanding of QED.

Very readable........2007-03-19

Unlike Feynman's lecture series, you'll be able understand every word of the first two of the books three sections. Is a great feeling to understand Feynman.

Quantum mechanics for the intelligent layman.......2007-02-17

This book has to be the ultimate proof that if you really understand something, you can explain it to anyone willing to listen carefully.

Most people would agree that Quantum Mechanics is the most complex idea ever. Here, the idea is presented accurately, but without any scientific or mathematical jargon. It's just amazing that this is possible.

Springer Handbook of Atomic, Molecular, and Optical Physics

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Springer Handbook of Atomic, Molecular, and Optical Physics

Manufacturer: Springer
ProductGroup: Book
Binding: Hardcover

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ASIN: 038720802X

Book Description

This Springer Handbook of Atomic, Molecular, and Optical Physics comprises a comprehensive reference source that unifies the entire fields of atomic, molecular, and optical (AMO) physics, assembling the principal ideas, techniques and results of the field from atomic spectroscopy to applications in comets. Its 92 chapters are written by over 100 authors, all leaders in their respective disciplines.

Carefully edited to ensure uniform coverage and style, with extensive cross references, and acting as a guide to the primary research literature, it is both a source of information and an inspiration for graduate students and other researchers new to the field. Relevant diagrams, graphs, and tables of data are provided throughout the text.

Substantially updated and expanded since the 1996 edition and published in conjunction with the 2005 World Year of Physics (commemorating Einstein’s 1905 "miracle year"), it contains several entirely new chapters covering current areas of great research interest, such as Bose – Einstein condensation, quantum information, and cosmological variations of the fundamental constants. A fully searchable CD-ROM version of the contents accompanies the handbook.

Average customer rating:

Perfect for engineers

Modern Physics for Engineers
Jasprit Singh
Manufacturer: Wiley-Interscience
ProductGroup: Book
Binding: Hardcover

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ASIN: 0471330442

Book Description

Linking physics fundamentals to modern technology-a highly applied primer for students and engineers

Reminding us that modern inventions-new materials, information technologies, medical technological breakthroughs-are based on well-established fundamental principles of physics, Jasprit Singh integrates important topics from quantum mechanics, statistical thermodynamics, and materials science, as well as the special theory of relativity. He then goes a step farther and applies these fundamentals to the workings of electronic devices-an essential leap for anyone interested in developing new technologies.

From semiconductors to nuclear magnetic resonance to superconducting materials to global positioning systems, Professor Singh draws on wide-ranging applications to demonstrate each concept under discussion. He downplays extended mathematical derivations in favor of results and their real-world design implication, supplementing the book with nearly 100 solved examples, 120 figures, and 200 end-of-chapter problems.

Modern Physics for Engineers provides engineering and physics students with an accessible, unified introduction to the complex world underlying today's design-oriented curriculums. It is also an extremely useful resource for engineers and applied scientists wishing to take advantage of research opportunities in diverse fields.

Customer Reviews:

Perfect for engineers.......2000-08-22

This book covers topics in modern physics that are the most important for the engineer. It makes an equilibrated use of figures, tables and conceptual diagrams, thus providing a clear guideline for the student. It also provides small but interesting historic introductions in some chapters, that also help to understand why different theories appeared. This could all be done without forgetting the necessary theoretical and mathematical rigorousness. A very good book for engineers.

QED: The Strange Theory of Light and Matter

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Mind-blowing
Just the facts, Ma'am
The shortest, clearest and "most physical" description of quantum theory without compromise in the accuracy
Whew! Worth the effort...
Feynman's Nobel prize winning subject, QED.

QED: The Strange Theory of Light and Matter
Richard P. Feynman
Manufacturer: Princeton University Press
ProductGroup: Book
Binding: Paperback

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ASIN: 0691024170

Book Description

Famous the world over for the creative brilliance of his insights into the physical world, Nobel Prize-winning physicist Richard Feynman also possessed an extraordinary talent for explaining difficult concepts to the nonscientist. QED--the edited version of four lectures on quantum electrodynamics that Feynman gave to the general public at UCLA as part of the Alix G. Mautner Memorial Lecture series--is perhaps the best example of his ability to communicate both the substance and the spirit of science to the layperson.

The focus, as the title suggests, is quantum electrodynamics (QED), the part of the quantum theory of fields that describes the interactions of the quanta of the electromagnetic field-light, X rays, gamma rays--with matter and those of charged particles with one another. By extending the formalism developed by Dirac in 1933, which related quantum and classical descriptions of the motion of particles, Feynman revolutionized the quantum mechanical understanding of the nature of particles and waves. And, by incorporating his own readily visualizable formulation of quantum mechanics, Feynman created a diagrammatic version of QED that made calculations much simpler and also provided visual insights into the mechanisms of quantum electrodynamic processes.

In this book, using everyday language, spatial concepts, visualizations, and his renowned "Feynman diagrams" instead of advanced mathematics, Feynman successfully provides a definitive introduction to QED for a lay readership without any distortion of the basic science. Characterized by Feynman's famously original clarity and humor, this popular book on QED has not been equaled since its publication.

Customer Reviews:

Mind-blowing.......2006-12-10

Feynman makes it easy for the curious amateur to understand. This book is accessible and mind-blowing. Everyone should read it. And there is little if any math so don't be intimidated.

Just the facts, Ma'am.......2006-08-07

In the Introduction to the 'Strange Theory of Light and Matter' Feynman tells us that what he likes to talk about is the "part of physics that is known, rather than a part that is unknown." And he goes on to give us a thumbnail sketch, a "physicist's history of physics," which shows how physicist's, in their quest to describe the world, continually reduce a group of seemingly unrelated phenomenon to a single phenomenon. So heat and sound were found, thanks to Newton, to be reducible to laws of motion, while electricity, magnetism and light were reducible to Maxwell's electromagnetic wave. In this way physicist's explain the world.

Here one is almost tempted to say that they proceed much as religion and ideology do. Religion has from the beginning of recorded history been taking phenomenon and feelings, like storms and suffering or aging and despair, and molding them into an internally coherent explanation of all that is and was and will be. They do this by separating the relevant from the incidental, then uncovering the essential by excluding the accidental. They simplify. In similar ways ideologues like the communists take what at one time were discreet incidents and disparate facts (for instance, the poverty of the third world and imperialism) and weave them into a grand general explanation. Is science merely the latest avatar of religion? - Or perhaps it is an ideology without tears?

Not so fast! Feynman goes on to show us that attempts to explain the atomic world foundered on the laws of motion. He shows us that the rescue of those shipwrecked on the shoals of classical theory involved the invention of a new, counter-intuitive theory, Quantum Mechanics. He then goes on, while discussing a small portion of that theory, to give us the (deliberately) hilarious and 'absurd' example of how physicists predict how many photons, out of a given number, will be reflected back from a surface. 'Draw little arrows on a piece of paper' and watch the clock, he tells us. And with no explanation as to why this procedure works! Of course, for physics, what matters is that it does work. Physicists have been forced "away from making absolute predictions to merely calculating the probability of an event." But where is the essential, the eternal, the necessary?

Perhaps this is what Feynman is driving at. Science describes, it doesn't explain why. We should all wonder at that. The great 'philosophical' questions that drive theology and political ideology are beyond the purview of physics. Science doesn't create worlds; nor does it 'interpret' or change them, it simply describes what it finds. (It is technology that changes the world.) Freud saw fit to end one of his books by saying that 'our science is no illusion, but it would be an illusion to believe you can find elsewhere what it does not offer.' But how much truer this is of physics! One is then perhaps not surprised to come away from this little book wondering exactly what the status of philosophy, psychoanalysis, politics and religion would be in a genuinely scientific world.

But of course there will never be, given human irrationality, an entirely scientific human culture. This book is a superb introduction to quantum electrodynamics. It's 'experimentalism' and agnosticism towards grand philosophical explanations I found very congenial and convincing. Feynman is an engaging personality and this is an entertaining book. While one doesn't need a degree in physics and math to understand him a lay competence and interest in math and physics is certainly necessary. For those of us still living in a Newtonian world, a dwindling number to be sure, this book will have several surprising moments. But that really is part of the show!

The shortest, clearest and "most physical" description of quantum theory without compromise in the accuracy.......2006-01-21

I had read a few books on quantium physics before, some are serious textbooks, and some are books for general readers, without even a single equation. This book, catagorized as the latter case, is the shortest, clearest and "most physical" description I've ever read.

It really tells you what the physicsts are doing behind the equations. I felt I solved many of the puzzles I had before, especially the intuitive meaning of the wave function and how the amplitudes really combine "visually".

It's a must read if you have tried other books on quantum theory but get confused (which I think is very likely). One major difference of this book from other books is Feynman didn't try to invent analogous but confusing things to explain difficult concepts. He really introduces you the subject itself.

Whew! Worth the effort..........2005-12-23

Feynman believed that if you truly understand a concept than you should be able to express it in a way that any educated person can understand it. Thus you have a smallish book (based on lectures) on some of the most obtuse subjects in physics in a way that is entertaining, readable, and understandable.

This is no "Surely You're Joking Mr. Feynman" (if you haven't read it you should...) but still shows his wit and curiosity. One reason I think the book is so good is that he was instrumental in working out many of the ideas he presents so he's not just repeating someone else's work.

The concepts can be hard to grasp but the book is well worth the trouble.

Feynman's Nobel prize winning subject, QED........2005-09-15

This book is basically a transcript of a series of lectures Professor Feynman gave at UCLA and in New Zealand. The lectures were given at the University of Auckland in New Zealand because Feynman wanted to "try out" the lectures on people far from home to see if they would work. [...] The book QED attempts successfully to give the reader an idea of how light works at a fundamental level and is actually very weird and untuitive due to our inherited and evolved senses and perception. Feynman preps the reader to anticipate these very strange unintuitive scientific findings and goes on to explain them very well.

Bose-Einstein Condensation (The International Series of Monographs on Physics)

Average customer rating:

Concise slick book. Good but not great.

Bose-Einstein Condensation (The International Series of Monographs on Physics)
L. Pitaevskii , and S. Stringari
Manufacturer: Oxford University Press, USA
ProductGroup: Book
Binding: Hardcover

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ASIN: 0198507194

Book Description

The book is an introductory text to the physics of Bose-Einstein condensation. This phenomenon, first predicted by Einstein in 1925, has been realized experimentally in 1995 in a remarkable series of experiments whose importance has been recognized by the award of the 2001 Nobel Prize in Physics. The condensate is actually a new state of matter, where quantum-mechanical wave functions of atoms behave as coherent matter waves in the same way as coherent light waves in the case of a laser. The authors provide a theoretical presentation of the main concepts underlying the physics of dilute atomic gases in conditions of extremely low temperatures where quantum effects play a crucial role. The main effort is devoted to discussion of the relevant theoretical aspects exhibited by these systems, such as the concept of order parameter, long range order, superfluidity and coherence. The mathematical formalism is presented in a form convenient for practical use. The book develops the theory of Bose gases starting from the pioneering Bogoliubov approach and gives special emphasis to the new physical features exhibited by non-uniform gases which are produced in the recent experiments with magnetic and optical traps. These features include the determination of the equilibrium profiles, the collective oscillations, the mechanism of the expansion of the gas after releasing the trap, the interference patterns obtained by overlapping two condensates, the rotational properties revealing the effects of superfluidity (quantized vortices, behaviour of the moment of inertia), the Josephson-like phenomena associated with the coherence of the phase, the beyond mean field phenomena exhibited by quantum gases in conditions of reduced dimensionality (1D and 2D) etc. The book also discusses the analogies and differences with the physics of "classical" superfluids like liquid helium and introduces some of the major features of trapped Fermi gases at low temperature, pointing out the consequences of superfluidity.

Customer Reviews:

Concise slick book. Good but not great. .......2005-03-07

This is not an easy book to read. It starts off with field theory and assumes a lot of knowledge, especially from Landau's books on fluid mechanics and statitstical physics. The format of the writing is concise, almost journal publication style. Chapter 14 on angular momentum and vortices is very slick and hard to follow. Chapter's 7 and 8 on response theory and 4He introduce a lot of notation and constructs without definition or motivation. Their discussion of mean field theory in BEC, derivation of the Gross-Pitaevskii from the operator formalism, and discussion of Fermi gases is clearer than in the BEC book by Pethick and Smith. There is also a discussion of optical lattices and low dimensions that is not discussed in Pethick and Smith. The other standard topics such as dynamics of a BEC in a harmonic trap are covered better in Pethick and Smith. Cooling is not discussed in this book.

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