Modern Quantum Mechanics Pearson New International Edition eBook J J Sakurai Jim J Napolitano
Download As PDF : Modern Quantum Mechanics Pearson New International Edition eBook J J Sakurai Jim J Napolitano 
This best-selling classic provides a graduate-level, non-historical, modern introduction of quantum mechanical concepts. The author, J. J. Sakurai, was a renowned theorist in particle theory. This revision by Jim Napolitano retains the original material and adds topics that extend the text’s usefulness into the 21st century. The introduction of new material, and modification of existing material, appears in a way that better prepares the student for the next course in quantum field theory. Students will still find such classic developments as neutron interferometer experiments, Feynman path integrals, correlation measurements, and Bell’s inequality. The style and treatment of topics is now more consistent across chapters.
The Second Edition has been updated for currency and consistency across all topics and has been checked for the right amount of mathematical rigor.
Modern Quantum Mechanics Pearson New International Edition eBook J J Sakurai Jim J Napolitano
This is the best text book overall, that I have come across with for my graduate level QM course. That said, It is appalling that Cambridge University Press republished this great text in ,2017, without including the author's errata which has been available since 2012!Product details
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Modern Quantum Mechanics Pearson New International Edition eBook J J Sakurai Jim J Napolitano Reviews
Sakurai's book is not an introductory text. If you have covered Introduction to Quantum Mechanics by David J. Griffiths this book should not be a problem. Sakurai's book is really a refinement on Griffiths book. Sakaurai goes heavy into the use of Dirac notation. The basic difference between the two books is that Sakurai goes into the detail of QM. When you are finished with Sakurai's book you will understand where things came from up to the point where it takes Quantum Field Theory to understand things. For example in QM the Pauli exclusion principle is given as a rule, in QFT it is proven.
Sakurai starts out showing you how to think of the measurement problem with the use of spin. This is a great way to do this because he uses spin of one half and it has only two states. He uses this to get you into what he calls the "Quantum way of thinking". When people ask me what is wrong with QM I use this example to explain it to them. You do not know the state of system until a measurement is made, also called the collapse of the wave function. He not only teaching the math but also the general ideas behind QM.
He shows how Schroedinger's equation comes about. By doing this he is teaching you how to use Dirac notation. In quantum field theory it is assumed that you know <x|p> = exp(ipx/h). A simple example but with completeness this is used to get path integrals. Sakurai assumes you know about the Hydrogen Atom, which any undergrad text covers such as Griffiths. Sakurai has been critized for not covering the Hydrogen Atom, when it is covered in Griffiths Introduction to QM book and covered very completely.
In his angular momentum section he does rotations using the SO(3) and SU(2) group. This is where the book becomes more mature. For most people this is the first time to see it done this way, most undergrad texts do not cover it this way. But to really understand QM or Quantum Field theory you must know this and Sakurai covers this well.
He also covers Symmetries such as time reversal which you will need for QFT.
He then spends the rest of the book covering the various approximation methods.
On the back of Sakurai's book it says that the book is meant for someone who has had QM at the Junior or Senior level. Cover Griffiths book first before attempting this one. Sakurai has problems on spin in chapter one even though he does not cover spin until chapter three. He assumes you learned about Pauli spin matrices before his book.
I guess the real point of Sakurai's book is to make it finally sink in. He does a good job of it too. After this book you can say you really know QM. People are confused about one thing. When they say no one understands QM, they mean no one knows way nature acts like she does. People do understand how to use QM to the point where they can apply it. It is not the statistical nature of QM in question but how the wave function collapses that is in question.
DO NOT TRY TO LEARN QM FROM THIS BOOK, advance your knowledge with this book.
It is crazy math heavy with little explanation and no examples.....none. Cohen-Tannoudji is math heavy with excellent explanations and many examples.
Have used this for my graduate level quantum mechanics class. The approach taken in this book can be confusing and skip over alot of steps. I came from using Griffiths for undergraduate quantum, and found the approaches taken in sakurai very different. I understand it is on a graduate level, but often times ideas are not explained and there are alot of gaps in between concepts being explained. Although probably slightly less "graduate" level, I recommend using Shankar, the math is a lot more explicit and easier to understand.
Truely one of the best texts out there for refining a pre-existing understanding of quantum mechanics. By this I mean that the reader should already be familiar with basic quantum mechanics (i.e. should have taken one undergraduate course on the topic). I am currently using this book for graduate level quantum and it is a fantastic and irreplaceable resource in my arsenal of knowledge.
If you take the continuation course of graduate quantum mechanics, please note the international version of the text voids out chapter 8 on relativistic QM. Thankfully i'm not in grad school, so I bought a text on the subject of relativistic QM. Other than that, great subject matter. A great text.
The approach of this book is brilliant. Forcing the student to just accept |a> as all there is to know about a system and then developing EVERYTHING else from it. If you have an undergraduate understanding of QM from Griffiths or other standards, this book will give you a radically different understanding.
That being said, there are some problems. A lot of errors, some places where reorganization is drastically needed. I think there should be some expansion on group theory. A little bit of explanation on direct sum/products, irreducability of a representation, etc. I found that a small amount of time researching these topics in Shankar drastically improved my understanding.
But that being said, I find this textbook has aided my education more than any other textbook in it's respective course.
For a second look at Quantum mechanics (let's say after griffiths QM), I think this book is ideal. The book uses dirac notation throughout, and less emphasis on wave mechanics, but that is covered pretty well in Griffiths. The prose is clear, and the derivations are straightforward. The emphasis is on theory rather than applications, but if you want to do physics theory, this is pretty great. I think the problems are at the right difficulty level, they will challenge you, but in general don't require some trickery/genius insight you can be confident the text does prepare you to solve them. In general, I think it's a very balanced book.
This is the best text book overall, that I have come across with for my graduate level QM course. That said, It is appalling that Cambridge University Press republished this great text in ,2017, without including the author's errata which has been available since 2012!
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