New post in Dirac-equation

Charge conjugation in Dirac equation

July 7th, 2021

Why are four-vectors needed in the Dirac equation, when there are 4 linearly independent 2D matrices?

March 10th, 2020

How would we know that Dirac equation does not describe composite spin-1/2 fermions?

April 15th, 2020

Dirac Lagrangian density in curved spacetime

June 12th, 2020

Derivation of Dirac equation using the Lagrangian density for Dirac field

June 3rd, 2020

What does Peskin's square root of a matrix mean?

May 19th, 2020

Dirac equation in QFT vs relativistic QM

August 1st, 2022

Where is spin in the Schroedinger equation of an electron in the hydrogen atom?

August 1st, 2022

Why the lowest order of matrices in Dirac equation are 4x4 matrices?

February 7th, 2020

Determinant of Dirac operator in flat space?

January 29th, 2020

Geometrical interpretation of the Dirac equation

November 2nd, 2020

Unitary Lorentz transformation on quantized Dirac spinor

January 8th, 2020

Hermitian properties of Dirac operator

March 25th, 2020

Why is helicity a good quantum number while spin isn't?

January 6th, 2021

Is the fermion mass Lagrangian term imaginary instead of real?

February 9th, 2021

How does chirality of a massive fermion change with time?

December 16th, 2020

Hermitian adjoint of 4-gradient in Dirac equation

October 18th, 2020

Does the Schrödinger equation apply to spinors?

August 1st, 2022

Why are usually 4x4 gamma matrices used?

June 4th, 2020

Lorentz transformation of the Spinor Field

May 30th, 2020

How did Paul Dirac predict the existence of antiproton?

January 28th, 2020

Is the Dirac equation equivalent to the Klein-Gordon equation for its left handed component?

August 26th, 2020

Why is it hard to extend the Feynman Checkerboard to more than 1+1 dimensions?

March 6th, 2020

Why do we need $2^\text{nd}$ quantization of the Dirac equation

August 13th, 2022

What was missing in Dirac's argument to come up with the modern interpretation of the positron?

August 1st, 2022

Angular Momentum of the Dirac field

April 4th, 2020

Klein paradox for bosons and fermions

August 1st, 2022

Does Dirac's idea of filled negative energy states make sense?

June 1st, 2020

How to prove $(\gamma^\mu)^\dagger=\gamma^0\gamma^\mu\gamma^0$?

August 16th, 2020

Sign in front of QFT kinetic terms

March 8th, 2022