Free resources on quantum field theory, general relativity, supersymmetry & string theory.

Collection of high quality video lectures and notes, on theoretical physics. (Last revised: March, 2018)

The following is mostly a collection of high quality video lectures, and accompanying notes, on theoretical physics. All of the resources are freely available on the Web. Every resource has been reviewed, and should allow you to make "quick" progress in fundamental physics. It should be possible to more or less work your way downwards through the list of material. You should find additional articles very helpful in developing your understanding.

If you have successfully completed an undergraduate course in mathematics / physics you could definitely work your way through the material on this website in just a few years!

If you know of any resources that you can personally recommend, please send me a message in the comments below.

Classical Mechanics & Special Relativity

Classical Mechanics, Jacob Linder

Special Relativity, Leonard Susskind

The Feynman Lectures on Physics Volume I & II

Quantum Mechanics

Quantum Mechanics, Professor J.J. Binney | Notes

Mastering Quantum Mechanics, Barton Zwiebach [1], [2] & [3]

Quantum Mechanics II, Prof. Dr. Namık Kemal PAK

The Feynman Lectures on Physics Volume III

Mathematical Physics

Physical Mathematics (15), Kevin Cahill | Physical Mathematics (16), Kevin Cahill | Physical Mathematics (17), Kevin Cahill

Laplace Transforms, Gilbert Strang

Advanced Mathematical Methods for Engineering and Science Students, G. Stephenson, P. M. Radmore

Quantum Field Theory

Lectures On Quantum Field Theory, Ashok Das | Field Theory - A Path Integral Approach Ashok Das (Many thanks to Ashok Das).

Quantum Field Theory, David Tong | Notes

Quantum Field Theory, Tobias Osborne

Quantum Field Theory (Fall 2012), Kevin Cahill

Introduction to Quantum Field Theory, Matthew Schwartz. This book was previously available for download on the website.

If you would like to purchase a book: I can also highly recommend Field Quantization by Walter Greiner et al.

The following book along with solutions may be helpful for reference: Quantum Field Theory, Mark Srednicki. This book was previously available for download on the website.

Dear Dr. B: How come we never hear of a force that the Higgs boson carries?, Sabine Hossenfelder

You Should Love (or at least respect) the Schrödinger Equation, Sean M. Carroll

Advanced Quantum Field Theory

Advanced quantum field theory: the theory of elementary interactions, Tobias Osborne

The Standard Model, Paul Langacker

QCD Made Simple, Frank Wilczek

General Relativity & Cosmology

General Relativity, Neil Turok

A First Course in General Relativity, B. Schutz

Lecture Notes on General Relativity, Sean M. Carroll

The large scale structure of space-time, S. W. Hawking & G.F.R Ellis


Explorations in Particle Theory, Ben Allanach | Notes

Supersymmetry, Fernando Quevedo | Notes

Supersymmetry and Gauge Theory, Neil Lambert

Supersymmetry, David Shih

String Theory

String Theory, Barton Zwiebach

Lectures on String Theory, David Tong

An Introduction to String Theory, Kevin Wray

Introduction to String Theory, Neil Lambert | Notes | Exercises

String Theory and Holographic Duality, Prof. Hong Liu | Notes

Introduction to Superstrings and M-Theory, Michio Kaku (Free download from Springer)

Strings, Conformal Fields, and M-Theory, Michio Kaku (Free download from Springer)

The following books may be helpful for reference: String Theory, Volume I, An Introduction to the Bosonic String, Joseph Polchinski, String Theory, Volume II, An Superstring Theory and Beyond, Joseph Polchinski.

String theory to the rescue, Joe Polchinski

Explore ..

The Feynman Lectures on Physics

The Theoretical Minimum

Other articles:

Alice and Bob Meet the Wall of Fire, Jennifer Ouellette

Why Is There Something, Rather Than Nothing?, Sean M. Carroll

Reviewing Later

1951 Lectures on Advanced Quantum Mechanics, Freeman J. Dyson

Notes from Sidney Coleman's Physics 253a, Sidney Coleman

Introduction to Quantum Field Theory, F.Mandl

You can also a find a large collection of curated videos on my youtube channel.

Thank you for visiting my website. If you have a question you would like to ask me about the resources, please send me a message through my contact form.