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Product details
File Size: 118231 KB
Print Length: 376 pages
Publisher: Princeton University Press (October 1, 2015)
Publication Date: October 1, 2015
Sold by: Amazon Digital Services LLC
Language: English
ASIN: B0147EPTRI
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This book attempts to give the reader a flavor of what ideas drive much of modern physics. In particular the search for symmetries. The book splits its time between classical physics and the symmetries that existed and then on to modern theories and how they too have been constructed from various symmetries.The book introduces symmetry from the intuitive notion of reflections and rotations and then goes into how we believe physics operates equivalently under such operations. The idea of the group is investigated this way and its a very lucid introduction. Galilean transformations (ie a transformation in which observers in uniform relative motion are equivalent) are described along with their intuitive foundation. The book dives into relativity and the condition of speed of light as a constant forces us to recognize that the lorentzian transformation is the world's actual symmetry (to our current experimental observations). These classical introductions to symmetry and the groups under which classical physics transforms are the most clear in the book and very much worth the read.The book then starts to describe the other forces and the ideas of the action and calculus of variations in physics, in particular the lagrangian. Noether's theorem of continuous transformations and their correspondence to a symmetry is described, and its deep consequences contemplated. The weak force and its assymetry is described (ie its handedness) so that one starts to see that at its core some basic forces dont portray the spacial symmetry one might expect. The book gets the reader a bit over their head at this point. It gets into particle physics and how representations of groups can be used for correspondence with elementary particles and how there are different dimensional representations of these groups. These are not easily communicated to the non-expert. Things like how the representations of SU groups can have different dimensions etc just isnt clear, nor should it be given these are graduate level mathematics ideas, but explanations are attempted nonetheless. These parts of the books I found less readable and interesting as they are hard to really associate with.In aggregate, the intuitive aspects of the book are very lucid, but as physics has gotten more abstract and it gets into Yang-mills theory it gets a lot more difficult to realistically follow. To put things into perspective for the reaser without familiarity, much of yang-mills theory is an open problem in mathematics that is so difficult it is within the category of being elligble for the millenium prize... So for the author to try to engage the reader with it, and how its used and its symmetry repurcussions is very difficult, and in my opinion, a bit too ambitious. Nonetheless, the earlier parts/first half of the book are very readable and for those alone the book is worth reading.
Symmetry seems to be a mathematical need for the description of modern physics, and the news often tells of how a new discovery involves the breaking of symmetry, such as the Higgs particle, whose existence was confirmed in 2012. Problem with this book is that it wanders, the author tends to be cute, and after reading it, I am still, as a non-mathematical biologist, am unable to explan to myself or others what is symmetry. I often tell myself that I do not understand something unless I can explain it in 25 words or less. Prof. Zee himself says he cannot explain symmetry non-mathematically. Pity, as otherwise a clear explanation would be of great interest to those of us seeking to understand the post-Einstein world.
After buying Dr. Zee's book, I became worried that I would not be able to understand it and would thereby lose respect for my brain, one of my last bankable attributes. The book lay on the side table for a year. Finally, on a whim, I sat down to read it early in the evening-- about dinner-time. The next thing I knew, the windows were getting light and I couldn't feel my feet. I barely made it through algebra, have no science background, and a scientist would probably tell me that I have no real business reading a book like Dr. Zee's. But his explanations create a case for a greater aesthetics that is so compelling-- a beauty not tangential or decorative, but essential to the architecture of physical reality-- that I wholeheartedly recommend his book to every thinking person I know. And that includes designers. And blondes.
This book is not about symmetry of shapes. It is about a much more fundamental symmetry: the invariances observed in the most fundamental laws of physics. These invariances render modern physics theories simple and fundamentally austere, yet deep in abstract sense and with rich consequences. In this book Zee demonstrates there is no room for decorations in the architecture of physical reality, and opens the reader's eyes to the intrinsic beauty of physics laws at the most fundamental level. Zee manages to do so without a single line of math (Zee occasionally uses a 'ket' notation to denote the states of a physical system, but thoroughly explains this shorthand notation).Zee's enthusiasm and natural writing style ensures he not only conveys this message, but also gives the reader a clear insight in what modern physics is about. Zee explains how the work of Einstein, Noether and Heisenberg resulted in a history of ideas that inevitably led to a theory of supreme beauty: the non-Abelian gauge theory by Yang and Mills. I know of no other pop science book that explains the essence of this concept so well.The book reads like a novel. It contains interesting anecdotes, some funny sidelines, many simple - yet instructive - pictures, and is very easy to follow without any specialist knowledge in either math or physics.Five stars, easily.
This book provides an excellent intro and overview of modern physics, from Noether's theorem to Yang-Mills theory. Most gauge theory books and quantum field theory books are highly mathematical but short on exposition. This is an ideal book to read while tackling the harder stuff like Zee's "Quantum Field Theory in a Nutshell". Zee has one of the best writing styles of any hardcore physicists. Also Recommended is Kerson Huang's "Fundamental Forces of Nature".
Zee's discussion and development of the principles and importance of symmetry is well done. He manages to preserve the rigor of his analysis while simultaneously writing at a level that the auto-didact or interested non-physicist (like me) can understand. Whether symmetry in this universe is imposed by a deity, fundamental or otherwise, I certainly cannot say; but this book does provide a lively introduction to a concept with profound implications and utility.
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