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Quantum-field-theory
New post in Quantum-field-theory
Collapse in Quantum Field Theory?
August 9th, 2022
wavefunction-collapse
quantum-field-theory
quantum-mechanics
What are the main differences between these three quantum theories: QM, QFT & QG?
August 14th, 2020
quantum-mechanics
quantum-field-theory
quantum-gravity
Why not anything like spontaneous absorption?
June 23rd, 2020
atomic-physics
quantum-field-theory
quantum-mechanics
quantum-electrodynamics
visible-light
How can a left-handed fermion field create a right-handed antifermion?
June 2nd, 2020
chirality
weak-interaction
spinors
fermions
quantum-field-theory
Quantum Field Theory cross sections integrals
August 1st, 2022
resource-recommendations
feynman-diagrams
scattering-cross-section
particle-physics
quantum-field-theory
What's the relation or difference between Lippmann-Schwinger equation and Dyson equation?
March 28th, 2020
scattering
quantum-field-theory
Why does a Lorentz scalar field transform as $U^{-1}(\Lambda)\phi(x)U(\Lambda) = \phi(\Lambda^{-1}x)$?
August 7th, 2022
representation-theory
group-theory
special-relativity
quantum-field-theory
Degree of divergence of a Feynman diagram
August 1st, 2022
quantum-field-theory
renormalization
feynman-diagrams
Anomalies in QFT
April 26th, 2020
quantum-anomalies
quantum-field-theory
resource-recommendations
conformal-field-theory
symmetry-breaking
A certain gluon scattering amplitude
February 1st, 2020
quantum-field-theory
research-level
scattering
quantum-chromodynamics
yang-mills
Angular momentum operator in terms of ladder operators
January 1st, 2020
homework-and-exercises
quantum-field-theory
angular-momentum
Very basic question about QFT at finite density
August 13th, 2022
quantum-mechanics
quantum-field-theory
condensed-matter
How to determine correlation length when the correlation function decays as a power law?
May 24th, 2020
conformal-field-theory
correlation-functions
scale-invariance
quantum-field-theory
condensed-matter
How do I derive the Feynman rules for graviton-photon coupling?
August 1st, 2022
quantum-field-theory
quantum-gravity
feynman-diagrams
qft-in-curved-spacetime
What does stress-energy tensor supposed to mean in quantum field theories?
August 8th, 2022
quantum-field-theory
stress-energy-momentum-tensor
Zero dimensional field theory
February 18th, 2021
quantum-field-theory
field-theory
path-integral
spacetime-dimensions
Can virtual particles become real?
September 18th, 2021
quantum-field-theory
vacuum
virtual-particles
About solitons, what is the difference between kinks and vortices?
August 25th, 2020
quantum-field-theory
string-theory
instantons
solitons
How is a blackbody spectrum formed in the Sun?
August 1st, 2022
quantum-field-theory
astrophysics
thermal-radiation
stars
blackbody
S-matrix in Weinberg QFT
July 29th, 2020
quantum-field-theory
scattering
s-matrix-theory
Translational invariance implying diagonal representation in momentum space
September 27th, 2020
quantum-field-theory
momentum
conservation-laws
symmetry
Why can't matter anihilate with itself?
August 1st, 2022
quantum-field-theory
particle-physics
conservation-laws
antimatter
weak-interaction
Why do negative norm states break unitarity?
May 16th, 2020
quantum-field-theory
gauge-theory
quantization
unitarity
ghosts
Intuition behind Linked Cluster Theorem: connected vs. non-connected diagrams
April 10th, 2020
quantum-field-theory
statistical-mechanics
feynman-diagrams
partition-function
graph-theory
C, T, P transformation mistakes in ``Peskin&Schroeder's QFT''?
August 1st, 2022
charge-conjugation
cpt-symmetry
textbook-erratum
parity
quantum-field-theory
Peskin and Schroeder "Particle Creation by a Classical Source"
August 8th, 2022
quantum-field-theory
Causality and Quantum Field Theory
March 4th, 2020
commutator
causality
special-relativity
quantum-field-theory
Frasca's mapping of classical Yang-Mills to $\phi^4$ theory
November 21st, 2020
classical-field-theory
yang-mills
quantum-field-theory
Wilson loops and gauge invariant operators (Part 2)
June 13th, 2020
yang-mills
quantum-chromodynamics
gauge-theory
string-theory
quantum-field-theory
What does it mean that particles are the quanta of fields?
May 23rd, 2020
quantum-mechanics
quantum-field-theory
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