Digital library
Textbooks, references and open learning resources.

External
Thermodynamics and Introduction to Quantum Mechanics
Cathrine Southern · DePaul University
In the contents: 07: The Development of Quantum Mechanics · 7.1.01: Quantum Hypothesis Used for Blackbody Radiation Law · 08: The Postulates of Quantum Mechanics

External
CH 231: Physical Chemistry I, Quantum Mechanics
Steven Gravelle · Saint Vincent College
In the contents: 01: Quantum Mechanics and Atomic Structure · 1.02: Planck's Quantum Theory · 2.03: The Postulates of Quantum Mechanics

External
Quantum Mechanics III
Y. D. Chong · Nanyang Technological University
In the contents: 1.01: Scattering Experiments on Quantum Particles · 03: Quantum Entanglement · 3.01: Quantum States of Multi-Particle Systems

External
Time Dependent Quantum Mechanics and Spectroscopy
Andrei Tokmakoff · University of Chicago
In the contents: 01: Overview of Time-Independent Quantum Mechanics · 1.01: Describing a System Quantum Mechanically · 1.02: Matrix Mechanics

External
Advanced Quantum Mechanics
Pieter Kok · University of Sheffield
In the contents: 02: The Postulates of Quantum Mechanics · 5.03: Quantum teleportation · 06: Evolution of Open Quantum Systems

External
Time Dependent Quantum Mechanics and Spectroscopy 2025e
Andrei Tokmakoff · University of Chicago
This book is meant as a resource for those that study quantum mechanics, dynamics, and spectroscopy of molecular systems. It's written with chemists in mind: people whose view of the world is formed in the language of atoms and molecules. It is also meant as a reference for practitioners in the field who may be familiar with the topic but perhaps not the molecular perspective. This edition adds considerable new material to the 2014 edition as well as extensive editing to the whole book.

External
Quantum Mechanics
Niels Walet · University of Manchester
In the contents: 01: Introduction to Quantum Mechanics · 02: Concepts from Classical Mechanics · 3.01: The State of a Quantum System

External
Introduction to Quantum Mechanics
Kristie Koski · University of California, Davis
In the contents: 01: The Dawn of the Quantum Theory · 1.02: Quantum Hypothesis used for Blackbody Radiation Law · 1.03: Photoelectric Effect Explained with Quantum Hypothesis

External
Quantum Mechanics in Chemistry
Jack Simons and Jeff Nichols · University of Utah
In the contents: 01: The Basic Tools of Quantum Mechanics · 06: Quantum Mechanics in Reactions · 12: Quantum Mechanical Picture of Bond Making and Breaking Reactions

External
Introductory Quantum Mechanics
Richard Fitzpatrick · University of Texas at Austin
In the contents: 2.06: Quantum Theory of Light · 2.08: Quantum Interference of Light · 03: Fundamentals of Quantum Mechanics

External
Essential Graduate Physics - Quantum Mechanics
onstantin K. Likharev · Stony Brook University
In the contents: 1.02: Wave Mechanics Postulates · 02: 1D Wave Mechanics · 2.07: 2.6. Localized State Coupling and Quantum Oscillations

External
CHEM 110A: Introduction to Quantum Mechanics
Delmar Larsen · University of California, Davis
In the contents: 01: The Dawn of the Quantum Theory · 1.02: Quantum Hypothesis used for Blackbody Radiation Law · 1.03: Photoelectric Effect Explained with Quantum Hypothesis

External
Quantum Mechanics
Michael Fowler · University of Virginia
In the contents: 1.01: Breakdown of Classical Mechanics · 1.02: Early Quantum Mechanics · 03: Mostly 1-D Quantum Mechanics

External
Introduction to Quantum Mechanics
Delmar Larsen · University of California, Davis
In the contents: 01: The Dawn of the Quantum Theory · 1.2: Quantum Hypothesis used for Blackbody Radiation Law · 1.3: Photoelectric Effect Explained with Quantum Hypothesis

External
Atomic Physics for Everyone: An Introduction to Atomic Physics, Quantum Mechanics, and Precision Spectroscopy with No College-Level Prerequisites
Will Raven · Springer · 2025
This open access textbook introduces beginning undergraduate students and high school students to the world of quantum mechanics and atomic spectroscopy. Requiring no previous knowledge of physics and no math beyond basic algebra and sines and cosines, this book focuses on concepts to make the excitement of atomic physics more accessible for learners than ever before. It comes replete with learning goals, exercises and solutions, and an optional experimental component, making this text readily adoptable for both the classroom and the undergraduate lab. The book takes the reader on a lively and engaging tour through topics at the forefront of current science, including photons, quantum numbers, atomic energy levels, some different spectroscopy techniques, electronic structure, atomic notation, angular momentum, hyperfine structure, isotope shifts, the strong force, an introduction to the Standard Model of Particle Physics, and more.

External
Part QM: Quantum Mechanics
Konstantin Likharev · Stony Brook University · 2013
Essential Graduate Physics, Lecture Notes and Problems This Book is brought to you for free and open access by the Department of Physics and Astronomy at Academic Commons. It has been accepted for inclusion in Essential Graduate Physics by an authorized administrator of Academic Commons. For more information, please contact mona.ramonetti@stonybrook.edu, hu.wang.2@stonybrook.edu.

External
Introduction to the Physics of Atoms, Molecules and Photons (Benedict)
Mihály Benedict · University of Szeged
In the contents: 12: A quantum paradox and the experiments

External
Statistical Thermodynamics
Gunnar Jeschke · ETH Zürich
In the contents: 01: Basics of Statistical Mechanics · 1.03: Statistical Mechanics Based on Postulates · 05: Quantum Ensembles

External
An Introduction to the Electronic Structure of Atoms and Molecules
McMaster University · Richard F. W. Bader
In the contents: 6.04: The Quantum Mechanical Explanation of Valency

External
Quantum States of Atoms and Molecules
Zielinksi et al. · Chemical Education Digital Library
In the contents: 02: Foundations of Quantum Mechanics · 2.0E: 2.E: Foundations of Quantum Mechanics (Exercises) · 2.0S: 2.S: Foundations of Quantum Mechanics (Summary)