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Feb
3
reviewed Satisfactory Banach Space representations of physical systems
Feb
3
reviewed Reviewed What is the physical meaning of diffusion coefficient?
Feb
3
comment How can electrons be confined in Quantum dots?
And where is the question?
Feb
3
comment If photon energies are continuous and atomic energy levels are discrete, how can atoms absorb photons?
@user1104 I suppose I should clarify my comment. If you ask "why perpetual motion" is impossible? And someone answers "because it violates energy conservation" and you in turn ask "how exactly" the next answer will be "it depends on details". The same situation here. I gave you general answer and can not go into details if you want to stay general. The details of the level broadening depend on the details of the system. Most likely, it is interaction with the surrounding of the atom.
Feb
3
comment If photon energies are continuous and atomic energy levels are discrete, how can atoms absorb photons?
It can not. The details of how exactly is "goes into a discrete state" are important.
Feb
3
answered If photon energies are continuous and atomic energy levels are discrete, how can atoms absorb photons?
Feb
2
answered Is there a mathematical relationship here or am I looking for relations when there are none?
Feb
2
answered Time-reversal symmery and topological insulators
Feb
2
answered Why quantum mechanics?
Feb
2
answered What was wrong with action a distance?
Feb
2
answered How do you fit a dipole in an electron?
Jan
30
awarded  Revival
Jan
26
comment Why do the drift and diffusion components cancel for each type of carrier if EHP generation plays such big role in p-n-junctions?
I see no mention of zero bias in the question. And even for zero bias photoexcited carriers generated inside p-n junction will give you non-zero total current (which means that components are not compensated). That's how photodiode works.
Jan
25
comment Why do the drift and diffusion components cancel for each type of carrier if EHP generation plays such big role in p-n-junctions?
Your first sentence is nonsense. If drift and diffusion components cancel each other, the current through p-n junction is zero and diode has infinite resistivity. Which contradicts the facts. It seems that your question is incomplete: you mean no bias, or some other conditions?
Jan
23
answered Band Gap/Energy Bands in Semiconductors?
Jan
20
answered Do electrons in multi-electron atoms really have definite angular momenta?
Jan
15
comment Is all matter made of virtual particles?
It is much,much more complicated than stated in the article. So much that the main article line is completely wrong.
Jan
12
revised Mobility in semiconductors
edited tags
Jan
12
answered Mobility in semiconductors
Jan
12
answered Charge carrier injection in heterostructures - help with concept definition