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Modern Quantum Mechanics (2nd Edition) 2nd Edition

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J. J. Sakurai (Author)
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J. J. Sakurai (Author), Jim J. Napolitano (Author)
3.9 out of 5 stars 24 customer reviews
ISBN-13: 978-0805382914
ISBN-10: 0805382917
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Product Details

  • Hardcover: 550 pages
  • Publisher: Pearson; 2 edition (July 14, 2010)
  • Language: English
  • ISBN-10: 0805382917
  • ISBN-13: 978-0805382914
  • Product Dimensions: 7.3 x 1 x 9.2 inches
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (24 customer reviews)
  • Amazon Best Sellers Rank: #130,336 in Books (See Top 100 in Books)

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsOne of best
By Russell J. Barry on October 31, 2010
Format: Hardcover Verified Purchase
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.Read more ›
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5.0 out of 5 starsEn excellent book in QM for an advanced course
By S. Melmoth on September 6, 2010
Format: Hardcover Verified Purchase
I first learnt QM (or wave mechanics) from Griffith's text, and it made an excellent introduction. But I noticed when rereading Griffith's book to get an overview and to get a more abstract sense of how QM worked, it felt both slightly sloppy (a by-effect of the author's lovable informality, no doubt) and chaotic.

This is where Sakurai's text comes in. I've used the most recent edition of Modern Quantum Mechanics and I'm absolutely loving it. It starts off with a brief experiment, and shows how QM has to be invoked to describe the observations. From there, the book has postulates, axioms, and theorems all following neatly. But the text has also some very nice, thoroughly physical examples of how the theory is applied. The book also goes beyond the basics by for example introducing group theory for generators of rotation groups, and discusses the time-reversal operator (for T-symmetry).

Make no mistake, however: Sakurai assumes the reader knows some basics of wave mechanics, and lets you know it right away. This is not a book for a first course in QM (for which I warmly recommend Griffith's Introduction to Quantum Mechanics). But the mathematical rigor and crystal clear outline makes it an ideal text for a second or third course.
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2.0 out of 5 starsWARNING -- Missing Chapter 8 (Relativistic Quantum Mechanics)
By JohnnyAppleCider on October 21, 2015
Format: Paperback Verified Purchase
Be forewarned! This paperback version, ISBN 978-93-325-1900-8, of Modern Quantum Mechanics by Sakurai and Napolitano (2nd Ed) is missing Chapter 8 (Relativistic Quantum Mechanics) of the textbook. As someone else mentioned, other key topics may be missing such as density matrix. It may still hold value for some people since it contains much of the material of the standard US version, but not for me.

This paperback version is labeled as intended for sale in South Asia (India and such); see top left corner in red with white letters. Nothing wrong with selling this in the US. This info is provided just to make it easier for the buyer/customer to identify this 'abridged' version from the full book so that you can be aware of what you're purchasing.
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5.0 out of 5 starsMy favorite text book so far
By Nate on April 11, 2013
Format: Hardcover Verified Purchase
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.
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3.0 out of 5 starsCan be confusing
By MtDrew142 on December 27, 2012
Format: Hardcover Verified Purchase
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.
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