Free electron can't absorb a photon
15767
Can a free particle absorb/emit photons?
66987
Positron-electron annihilation - can more than two photons be created?
156804
Behaviour of free electron with constant velocity
74065
Proof of de Broglie wavelength for electron
29931
Double Slit experiment with just one photon or electron
69983
Photon energy - momentum in matter
99735
Are there any theoretical limits on the energy of a photon?
3909
Does $E = mc^2$ apply to photons?
85582
Why aren't all photons virtual particles even in the "vacuum" of empty space?
137837
Why electrons can't radiate in their atoms' orbits?
24540
Experimental boundaries for size of electron?
57961
Some doubts about photons
101318
Why does a monopole not radiate energy in electodynamics?
69709
How can a photon oscillate when it experiences no time?
20997
Can an electron jump to a higher energy level if the energy is insufficient or exceeds the $\Delta E$?
13605
EM wave function & photon wavefunction
129261
Photoelectric effect absorption coefficient decreases with energy, why?