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Dirac-equation
New post in Dirac-equation
Charge conjugation in Dirac equation
July 7th, 2021
spinors
cpt-symmetry
charge-conjugation
dirac-matrices
dirac-equation
Why are four-vectors needed in the Dirac equation, when there are 4 linearly independent 2D matrices?
March 10th, 2020
quantum-mechanics
dirac-equation
relativity
quantum-spin
How would we know that Dirac equation does not describe composite spin-1/2 fermions?
April 15th, 2020
fermions
dirac-equation
elementary-particles
protons
quantum-field-theory
Dirac Lagrangian density in curved spacetime
June 12th, 2020
quantum-field-theory
general-relativity
lagrangian-formalism
dirac-equation
qft-in-curved-spacetime
Derivation of Dirac equation using the Lagrangian density for Dirac field
June 3rd, 2020
dirac-equation
lagrangian-formalism
homework-and-exercises
variational-calculus
variational-principle
What does Peskin's square root of a matrix mean?
May 19th, 2020
dirac-equation
spinors
quantum-field-theory
Dirac equation in QFT vs relativistic QM
August 1st, 2022
quantum-field-theory
second-quantization
dirac-equation
quantum-mechanics
Where is spin in the Schroedinger equation of an electron in the hydrogen atom?
August 1st, 2022
dirac-equation
quantum-mechanics
quantum-spin
schroedinger-equation
electrons
Why the lowest order of matrices in Dirac equation are 4x4 matrices?
February 7th, 2020
representation-theory
dirac-equation
quantum-mechanics
dirac-matrices
Determinant of Dirac operator in flat space?
January 29th, 2020
dirac-equation
quantum-electrodynamics
functional-determinants
Geometrical interpretation of the Dirac equation
November 2nd, 2020
spinors
dirac-equation
geometry
differential-geometry
clifford-algebra
Unitary Lorentz transformation on quantized Dirac spinor
January 8th, 2020
special-relativity
quantum-field-theory
dirac-equation
spinors
poincare-symmetry
Hermitian properties of Dirac operator
March 25th, 2020
quantum-field-theory
dirac-equation
dirac-matrices
Why is helicity a good quantum number while spin isn't?
January 6th, 2021
quantum-mechanics
dirac-equation
quantum-spin
helicity
Is the fermion mass Lagrangian term imaginary instead of real?
February 9th, 2021
grassmann-numbers
dirac-equation
mass
quantum-field-theory
quantum-mechanics
How does chirality of a massive fermion change with time?
December 16th, 2020
quantum-field-theory
chirality
dirac-equation
feynman-diagrams
particle-physics
Hermitian adjoint of 4-gradient in Dirac equation
October 18th, 2020
dirac-equation
dirac-matrices
quantum-field-theory
operators
differentiation
Does the Schrödinger equation apply to spinors?
August 1st, 2022
quantum-spin
spinors
quantum-mechanics
schroedinger-equation
dirac-equation
Why are usually 4x4 gamma matrices used?
June 4th, 2020
dirac-matrices
representation-theory
dirac-equation
special-relativity
Lorentz transformation of the Spinor Field
May 30th, 2020
quantum-field-theory
spinors
special-relativity
dirac-equation
How did Paul Dirac predict the existence of antiproton?
January 28th, 2020
particle-physics
history
antimatter
dirac-equation
Is the Dirac equation equivalent to the Klein-Gordon equation for its left handed component?
August 26th, 2020
field-theory
quantum-field-theory
dirac-equation
spinors
klein-gordon-equation
Why is it hard to extend the Feynman Checkerboard to more than 1+1 dimensions?
March 6th, 2020
path-integral
dirac-equation
discrete
quantum-mechanics
Why do we need $2^\text{nd}$ quantization of the Dirac equation
August 13th, 2022
quantum-field-theory
dirac-equation
second-quantization
What was missing in Dirac's argument to come up with the modern interpretation of the positron?
August 1st, 2022
quantum-field-theory
electrons
antimatter
dirac-equation
Angular Momentum of the Dirac field
April 4th, 2020
dirac-equation
quantum-spin
angular-momentum
quantum-field-theory
Klein paradox for bosons and fermions
August 1st, 2022
klein-gordon-equation
quantum-mechanics
quantum-field-theory
dirac-equation
Does Dirac's idea of filled negative energy states make sense?
June 1st, 2020
dirac-equation
quantum-field-theory
How to prove $(\gamma^\mu)^\dagger=\gamma^0\gamma^\mu\gamma^0$?
August 16th, 2020
cpt-symmetry
dirac-equation
group-representations
group-theory
quantum-field-theory
Sign in front of QFT kinetic terms
March 8th, 2022
dirac-equation
fermions
lagrangian-formalism
quantum-field-theory
unitarity
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