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Quantum-electrodynamics
New post in Quantum-electrodynamics
Is reflection and refraction the same thing - bouncing of light?
August 1st, 2022
reflection
refraction
quantum-electrodynamics
electromagnetic-radiation
optics
Is spin necessary for electromagnetism?
October 14th, 2020
electromagnetism
polarization
quantum-electrodynamics
quantum-spin
electromagnetic-radiation
Where does the mass term come from in the Proca Lagrangian?
August 1st, 2022
electromagnetism
mass
lagrangian-formalism
quantum-electrodynamics
In QED, why is the $e^- + e^+\leftrightarrow\gamma$ process forbidden on-shell?
October 23rd, 2020
conservation-laws
virtual-particles
photons
momentum
quantum-electrodynamics
Feynman diagram for attractive forces
August 1st, 2022
feynman-diagrams
interactions
quantum-electrodynamics
standard-model
QED coupling constant at one loop
August 1st, 2022
quantum-field-theory
quantum-electrodynamics
renormalization
Do virtual photons have a frequency?
August 1st, 2022
frequency
quantum-electrodynamics
photons
energy
virtual-particles
Feynman rule for trace over fermion loop
August 1st, 2022
feynman-diagrams
quantum-field-theory
quantum-electrodynamics
Can a photon see ghosts?
August 1st, 2022
feynman-diagrams
quantum-field-theory
quantum-electrodynamics
gauge-theory
Did the Feynman heuristic of "simple effects have simple causes" fail for spin statistics?
March 22nd, 2020
quantum-field-theory
quantum-spin
quantum-electrodynamics
particle-physics
Does radio use virtual photons?
August 1st, 2022
quantum-electrodynamics
virtual-particles
feynman-diagrams
electromagnetic-radiation
Is it really proper to say Ward identity is a consequence of gauge invariance?
November 21st, 2021
gauge-theory
quantum-field-theory
quantum-electrodynamics
correlation-functions
ward-identity
How are classical optics phenomena explained in QED (Snell's law)?
August 1st, 2022
optics
quantum-electrodynamics
reflection
refraction
faq
Canonical equal time commutation relations in QED
July 26th, 2022
hamiltonian-formalism
quantum-electrodynamics
poisson-brackets
commutator
Crossing Symmetry in Bhabha scattering and Moller scattering
July 26th, 2022
scattering
quantum-field-theory
symmetry
quantum-electrodynamics
How does the Electric Field create a force?
May 16th, 2020
forces
electrostatics
electric-fields
quantum-electrodynamics
coulombs-law
Neutral Pion Decay
July 26th, 2022
quarks
pions
quantum-electrodynamics
Tree Level Feynman Diagrams of Electron Positron Interaction
July 26th, 2022
feynman-diagrams
subatomic
particle-physics
quantum-electrodynamics
Feynman Diagrams Pair Annihilation
January 23rd, 2020
feynman-diagrams
particle-physics
quantum-electrodynamics
What do the arrows on this Feynman diagram represent?
July 26th, 2020
quantum-electrodynamics
electrons
antimatter
feynman-diagrams
Why is there a band gap in semiconductors but no band gap in conductors?
July 26th, 2022
conductors
quantum-electrodynamics
electronic-band-theory
semiconductor-physics
Mølller scattering
July 26th, 2022
particle-physics
quantum-electrodynamics
feynman-diagrams
quantum-field-theory
Sign of momentum in fermion propagator
July 26th, 2022
quantum-electrodynamics
propagator
antimatter
conventions
fermions
Lightning and nuclear fusion
June 8th, 2022
quantum-electrodynamics
fusion
lightning
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