Introduction to Quantum Mechanics (2nd Edition)

After reading some critics, i feel like contributing to defend this text. First, when is this book useful? Based on the American educational system: when you're an undergrad student in physics, that is when you've already been exposed to the origins of quantum mechanics through a class often called "modern physics", and have some basics in calculus and linear algebra. But most importantly: if you intend to study physics further, because if you're just in for a tasting go for Susskind's or something similar. Now if you're a demanding or unusually advanced undergraduate student: relax !!! You will get to read many other books about QM so don't ask this one to be what it's not claiming to be: This is not an advanced text and by no means sufficient by itself if you're really committed to studying physics; it is not completely introductory either in the sense that you won't learn about the history of the subject or won't get a purely axiomatic, rigorous approach either. It is designed to make you USE quantum mechanics, sometimes (yes!) even before it tells you what you're doing, so that part of your deeper understanding is built out of your own experience studying examples or working through problems. This said, it also provides good insights and often takes the simplest route to make a point, with a language that i find as entertaining and clear as in his E&M book. Now studying QM will always be a tricky business because there are so many ways to approach the subject and try to make sense of it, while our brain is truly wired for classical mechanics. You will find the book that does it for you at some point but will have to read several of them no matter what: if you don't get a kick out of this one go somewhere else, but i personally found it extremely helpful and clear. My graduate text was Weinberg, which is fantastic when you're an advanced grad student but almost unreadable when you're not and i heavily relied on Griffiths and some other, popular intermediate books, to help decipher it. So this is a truly intermediate text and will take you to the meatier treatments of such as Sakurai, Merzbacher, Cohen-Tannoudji and others like a charm; if not, then just go straight to them. And if you're a Vulcan or a mathematician go straight to Weinberg! Good luck

Many people (actually just physicists) are rude to those who have learned the wonders of Quantum Mechanics from Griffiths. They say that the treatment lacks some of the mathematical rigor that you see in Shankar or Townsend (the two main competitors in the Intro to Quantum market). But — even if you take that as true (which I and many others wouldn't agree with) — that might actually just speak to this book's strength. Griffiths writes with a gusto and wit normally reserved for an investigative report rather than a physical explication. He makes quantum come alive. There is a common refrain among physics students that Professors lose the forest for the trees. They give you the tools (the matrices, the operators, the commutators) to see the probability of a given state, but they avoid talking about its consequence. Too often, students come out of physics classes with symbols in their toolboxes, but no real-world applications in their minds. Physics describes the universe. As much as many would try to remove it from such a noble, but dirty, pursuit they cannot. When I learn about quantum tunneling I appreciate an explanation that gives the formulae needed and then goes a step further and answers "why?" Why did that initial state lead to this final state? Why is the result not expected? Why does this result affect things in the world? Griffiths made that textbook. He answers the hard whys behind the mathematical ingenuity. Those whys are why we study physics and how we grow to become a better next generation of physicists. And for that reason, I give this textbook 5 stars.

This is an excellent textbook to get started with quantum mechanics, especially if your self-learning. The author writes in a very clear and informative prose by keeping concepts and theories short but detailed.The problems are useful and solutions to the problems are easy to find via the internet or student solutions manual. If your a graduate student conducting research in a field in which QM concepts and terms are readily used, but you do not have a undergraduate background in QM from physics or chemistry (i.e. materials science and engineering); quickly working through this textbook will bring you up-to-speed. As the title states this is an introductory text and omission of advanced topics and even some concepts which would be considered as essential, might be missing. This is where a book like R. Shankar's QM book might be better suited.Finally, the price for the economy edition makes it an affordable buy for your bookself, although the appendix is not included.

O livro é excelente. A forma que o autor escreve é leve e prazeirosa. As vezes meio que "joga" as coisas, mas o autor deixa claro, no prefácio, que a linha é aprender a usar e depois buscar uma maior compreensão. Portanto cabe uma complementação com outros livros que esclarece melhor de onde as coisas vem. Vale a pena compra-lo em inglês devido a menor número de erros tipográficos.

This is a wierd edition of the book, because it is very expensive, is missing chapters, plus is printed in a very small font that takes up only half of the page.... stay away from this edition

Comprehensive, well structured, lucid plus ellaborate writing style and illustrations which is something you might know the author for if you have gone through another of his masterpiece-'Introduction to Electrodynamics'. Overall, a very stimulating and satisfactory learning experience. If you're buying a book on QM, it has to be this one!

ottimo testo per chi ne sa almeno qualcosina di fisica ovviamente, l'introduzione è abbastanza lineare e prevede riferimenti alla fisica classica, lo consiglio vivamente a tutti

Excelente libro como una introducción de la mecánica cuántica. Mucho mejor que el Cohen tannudji aunque esté sea mucho más completo. El pedido llegó bastante antes de lo previsto.