Modern Quantum Mechanics, often called Sakurai or Sakurai and Napolitano, is a standard graduate-level quantum mechanics textbook written originally by J. J. Sakurai and edited by San Fu Tuan in 1985, with later editions coauthored by Jim Napolitano.

[1] The book was updated by Napolitano and released two later editions.

The second edition was initially published by Addison-Wesley in 2010 and rereleased as an eBook by Cambridge University Press, who released a third edition in 2020.

Early editions of the book have received several reviews.

[8][9][10] Along with Griffith's Introduction to Quantum Mechanics, the book was also analyzed in a review of the "Philosophical Standpoints of Textbooks in Quantum Mechanics" in June 2020.