Principles of QM - R. Shankar: Good Start ?

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Discussion Overview

The discussion revolves around recommendations for textbooks on quantum mechanics (QM), particularly focusing on the suitability of R. Shankar's book for self-study. Participants share their experiences and preferences regarding various QM texts, emphasizing the mathematical background needed for understanding the subject.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • One participant expresses interest in R. Shankar's book for its mathematical background but seeks feedback before purchasing.
  • Another participant recommends "Griffiths" as a more accessible starting point for beginners.
  • Contrarily, a different participant criticizes "Griffiths" and suggests "Cohen Tannoudji" instead, noting its higher cost.
  • Some participants mention that no single book is sufficient for a comprehensive understanding of QM, suggesting that combining information from multiple sources is beneficial.
  • Clarification is provided regarding the authorship of "Griffiths," indicating that the commonly referenced book is by David J. Griffiths, not Robert B. Griffiths, which is not aimed at newcomers.
  • One participant discusses specific historical inaccuracies in "Griffiths," emphasizing the importance of understanding the historical context of quantum mechanics to grasp the theory better.

Areas of Agreement / Disagreement

Participants express differing opinions on the best introductory QM textbooks, with no consensus reached on a single recommended book. Some favor "Griffiths," while others prefer "Cohen Tannoudji" or other texts, indicating a variety of perspectives on the matter.

Contextual Notes

Some participants note that their recommendations are influenced by personal experiences and the perceived deficiencies of certain texts. There is also mention of the need for historical context when studying QM, which may not be adequately covered in all recommended books.

Leo32
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Hi,

Have to get my Christmas wish lists together and was looking for a good book to buy on QM.
I need some background on the mathematics involved. I'm also self-studying, with the help of you all of course :)

I found this book to meed my needs, but I'm a bit unsure to spend a lot of money buying books online without being able to look into them.

Appreciate any feedback,

Leo
 
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I prefer "griffiths" to start.
It is more acceptable and understandable to the beginners.
Good Luck!
 
I think Griffiths is horrible.
I recommend "Cohen Tannoudji". (expensive though)
 
I myself found that it took putting lots of pieces together from different books to begin to get an idea of what was going on as no one book seemed to be very good.

Doing searches on the internet for badly explained bits helps a lot, so always keep that in mind when studying a book. You can also find lectures and tutorials in QM from many university websites.

By the way, when people say "Griffiths" they mean David J. Griffiths' QM book and not Robert B. Griffiths' QM book. The latter one is not really meant for people new to the subject.
 
caribou said:
I myself found that it took putting lots of pieces together from different books to begin to get an idea of what was going on as no one book seemed to be very good.

That's what happens when taught QM by unqualified teachers...

caribou said:
By the way, when people say "Griffiths" they mean David J. Griffiths' QM book and not Robert B. Griffiths' QM book. The latter one is not really meant for people new to the subject.

The former is a decent book (I like the cats on its covers),though it has its errors and defficiencies.
E.g. On page 137,when speaking of the spectrum of Hydrogen atom (bound states,no relativistic effects taken into consideration),it make the curious association between 1924 and the Schroedinger equation.It was early november 1924 when Louis de Broglie,in his PhD thesis,defuses the "bomb" which was then unanimously called QM.And,though he may have started working in 1925,it was not until march 1926 than Erwin Schroedinger published his first article on wave mechanics.As I remember,there were 4 articles,streched over (correctly included in) 2 volums of "Annalen der Physik",In the first,there was definitely his (unrelativistic) famous equation.In the last,there was the relativistical extent of his equation,which,unfortunately for him,was printed later than did Klein,Gordon,Fock.

So,everyone out there,if you really want to understand a physical theory,always make the right connections with the historical events.Knowing the history of a science make you look better than a "specialist" who mixes up historical details (especially when writing a book ),even though you don't know too much of that science.And the history of quantum physics (at least from 1900-1973) is a splendid one.For me,at least... :approve:

The second book is about 3 miles away from me (it's in another building owned by the library,which is in Leuven...),so I can't say anything good/bad upon it.

Cheers!

The one and only,Daniel-Cristian Ciobotu...
 

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