Thoughts on Sakurai's Quantum Mechanics textbook

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Discussion Overview

The discussion revolves around the differences between Sakurai's original Quantum Mechanics textbook and its second edition, with participants sharing their experiences and opinions on which version is preferable for study. The scope includes theoretical perspectives on quantum mechanics and the impact of revisions on educational value.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant expresses a preference for the original edition, citing its organization and clarity compared to the second edition, which they find cluttered.
  • Another participant mentions that colleagues believe the second edition has diminished the quality of the book.
  • A different participant notes that while they learned a lot from the first edition, they only used the second edition for its chapter on relativistic quantum mechanics, leaving them uncertain about the overall quality of the second edition.
  • Some participants advocate for the revised edition due to its inclusion of important topics like the Aharonov-Bohm effect, while others criticize the second edition for potentially misleading students with outdated formulations.
  • One participant argues that the second edition is not worse than the revised edition, suggesting that it offers completeness through additional content.
  • Confusion is noted regarding the naming of editions, with references to a book by Sakurai and Napolitano that contains parts of the original work but is labeled as the "second edition." This has led to differing opinions on how to categorize the texts.

Areas of Agreement / Disagreement

Participants express a range of opinions on the merits of the original, revised, and second editions of Sakurai's textbook. There is no consensus on which edition is superior, with some advocating for the original or revised editions while others defend the second edition's completeness.

Contextual Notes

Participants highlight various assumptions about the educational value of the editions, the impact of revisions on content clarity, and the potential for confusion regarding the naming of editions. These factors contribute to the ongoing debate without resolution.

noir1993
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I have taken a couple of graduate level courses in quantum mechanics and I have decided to read Sakurai's Modern Quantum Mechanics from cover to cover, partly because I liked his style and I have heard a lot of people talk highly of it. But I recently realized that the second edition of the same textbook is quite different from the original (revised edition). The second author wrote a whole new chapter on relativistic quantum mechanics and rewrote several parts of the book (a complete list of changes can be found in the preface to the second edition). Comparing, it with the original, I found the original a lot less uncluttered and better organised. Is it a good idea to ignore the second edition and stick to the original? I am very curious to know the community's opinion.
 
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I have not read the second edition, but my colleagues that have been teaching from Sakurai were of the opinion that the book was essentially ruined in the second edition.
 
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Orodruin said:
I have not read the second edition, but my colleagues that have been teaching from Sakurai were of the opinion that the book was essentially ruined in the second edition.

It should be noted that Sakurai himself wrote only the first three or four chapters and the book was finished by several other people. But I feel that they went too far with the second edition. Reading list of changes made to the text makes one very uneasy. I'll include a few pages from the preface for a quick reference.
 
I learned a lot about QM that I previously had not realized it was there from the 1st edition. I used the second edition only for its relativistic QM chapter but never read the rest of the book, so I can't give any impression whether the overall quality has downgraded from the first edition. But IMO the first one actually already places this series among the best QM books.
 
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I'd suggest the "revised edition", because it contains a lot of great additions like the Aharonov-Bohm effect etc. I always refer to the book

J. J. Sakurai, S. F. Tuan, Modern Quantum Mechanics Revised Edition, Addison Wesley 1994

This book does not contain "relativistic quantum mechanics". If so, I'd no longer recommend it since I consider it misleading students to teach them old-fashioned and cumbersome outdated formulations of the past!

There is another book authored by Sakurai and Napolitano, which contains large parts of the original books written by Tuan, who is no longer on the author list. To make the confusion complete, they call this the "2nd edition" (I'd label it "3rd edition").

Another sad example that supposed to be modern revisions of classical textbooks spoil their value is the famous book on mathematical physics by Courant and Hilbert. Always read the original!
 
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vanhees71 said:
I'd suggest the "revised edition", because it contains a lot of great additions like the Aharonov-Bohm effect etc. I always refer to the book

J. J. Sakurai, S. F. Tuan, Modern Quantum Mechanics Revised Edition, Addison Wesley 1994

This book does not contain "relativistic quantum mechanics". If so, I'd no longer recommend it since I consider it misleading students to teach them old-fashioned and cumbersome outdated formulations of the past!

There is another book authored by Sakurai and Napolitano, which contains large parts of the original books written by Tuan, who is no longer on the author list. To make the confusion complete, they call this the "2nd edition" (I'd label it "3rd edition").

Another sad example that supposed to be modern revisions of classical textbooks spoil their value is the famous book on mathematical physics by Courant and Hilbert. Always read the original!

Yes, I am trying to compare the revised edition and the so-called second edition! I am considering studying the revised edition.
 
I've now the chance to look into the 2nd edition. It's more or less the same book but with some additions, which make the book more complete rather than in any way worse than the revised edition. As I said, I'd not introduce relativistic QM as a way to relativistic QT at all but right away stress that it should be formulated as QFT. Napolitano himself gives this view at the end of this chapter. So I don't think that the 2nd edition is in any way worse than the revised edition.
 
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