Categories
Tags
Quantum-field-theory
New post in Quantum-field-theory
Peskin's book page 334 proof of $Z_1=Z_2$ to all orders in QED perturbation theory
February 7th, 2020
quantum-field-theory
quantum-electrodynamics
renormalization
perturbation-theory
ward-identity
Computing box diagrams with non-vanishing external momenta
June 25th, 2020
homework-and-exercises
quantum-field-theory
standard-model
feynman-diagrams
Tadpole symmetry factor
March 12th, 2020
quantum-field-theory
symmetry
feynman-diagrams
Why don't virtual particles violate conservation of mass/energy?
March 5th, 2020
quantum-field-theory
energy-conservation
feynman-diagrams
virtual-particles
Is an entropic force an actual force that can be explained as a fundamental interaction?
June 21st, 2020
quantum-field-theory
thermodynamics
elasticity
Virtual Particles real? Virtual particles create a universe?
June 7th, 2020
quantum-field-theory
universe
vacuum
virtual-particles
Free Vacuum vs Interacting Vacuum and Wick's theorem
September 26th, 2020
quantum-field-theory
operators
s-matrix-theory
wick-theorem
axion couplings
June 12th, 2020
quantum-field-theory
cp-violation
beyond-the-standard-model
Are the bare parameters of a renormalizable field theory infinitesimal or infinite?
March 25th, 2020
quantum-field-theory
renormalization
About the notion of the self-interaction of a field
September 3rd, 2020
quantum-field-theory
lagrangian-formalism
terminology
field-theory
interactions
Off-shell and on-shell assumptions within the derivation of Noether's theorem
December 15th, 2020
quantum-field-theory
lagrangian-formalism
conservation-laws
symmetry
noethers-theorem
Generator of local symmetries
April 6th, 2020
symmetry
field-theory
quantum-field-theory
Angular Momentum Operator in Quantum Field Theory
July 14th, 2020
homework-and-exercises
quantum-field-theory
angular-momentum
History of the names "Feynman-gauge" & "Landau-gauge". How arised & how settled?
August 1st, 2022
quantum-field-theory
gauge-theory
terminology
history
gauge
Massless $\lambda \phi^4$ QFT
August 1st, 2022
quantum-field-theory
quantum-electrodynamics
renormalization
Unitarity and renormalizability
August 1st, 2022
quantum-field-theory
renormalization
unitarity
Why, in spin sums, we sum over final spin states and average over initial states?
August 1st, 2022
quantum-field-theory
quantum-spin
probability
polarization
scattering-cross-section
Teach me Wick's theorem the honest way
June 7th, 2020
quantum-field-theory
mathematical-physics
wick-theorem
Difference between locality and causality?
July 13th, 2020
quantum-field-theory
special-relativity
terminology
causality
locality
Why are one-particle states called irreducible representations of Poincaré group?
September 4th, 2020
quantum-field-theory
special-relativity
group-representations
poincare-symmetry
group-theory
Why is there a minus sign in this wave equation derivation?
August 1st, 2022
quantum-field-theory
energy
momentum
conventions
klein-gordon-equation
Surface terms for path integrals in field theory?
December 15th, 2020
quantum-field-theory
path-integral
partition-function
boundary-terms
Gauge fixing and equations of motion
May 10th, 2020
quantum-field-theory
gauge-theory
lagrangian-formalism
action
gauge-invariance
Dirac Equation in General Relativity
August 1st, 2022
quantum-field-theory
general-relativity
cosmology
quantum-gravity
Computing functional determinant for Dirac fermions
December 29th, 2020
quantum-field-theory
functional-determinants
What goes wrong when one tries to quantize a scalar field with Fermi statistics?
August 7th, 2020
quantum-field-theory
particle-physics
spin-statistics
anticommutator
What does it mean to renormalize an effective field theory?
August 2nd, 2020
quantum-field-theory
string-theory
renormalization
regularization
effective-field-theory
Quantum to classical mapping: quantum criticality and path integral Monte Carlo
June 3rd, 2020
quantum-field-theory
condensed-matter
path-integral
What happens when you apply the path integral to the Einstein-Hilbert action?
October 8th, 2020
quantum-field-theory
general-relativity
quantum-gravity
renormalization
path-integral
Generators of Poincare Groups
January 15th, 2020
quantum-field-theory
special-relativity
lie-algebra
poincare-symmetry
←
1
2
3
4
5
6
7
8
9
…
58
59
→