This account is temporarily suspended to cool down. The suspension period ends on Jan 19 '15 at 19:12.
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Jan
12
comment re-defining the question, field quanta size in field theory?
as I said though, supposing the wavefunction is real and doesnt collapse(just supposing these are true) are the field quanta literally spread everwhere
Jan
12
comment confusion on quantum field theory
so it isnt literally spread over space like its energy is physically everywhere
Jan
12
comment re-defining the question, field quanta size in field theory?
anna v and twistor59:, if the wavefunction doesnt collapse and is physically real, are field quantum actually spread over all of space?(assuming MWI) if these facts are true or not is not my arguement, but if they are, are the field quanta spread accross all space?
Jan
12
comment re-defining the question, field quanta size in field theory?
@twistor59, I have put an update on my question. its a laymans question...
Jan
12
comment confusion on quantum field theory
and what does that mean in laymans terms, the energy of the quantum is spread over all of space?
Jan
12
comment re-defining the question, field quanta size in field theory?
as for these comments anna? "energy of the quantum is spread out over light years" and "implies that a single mode's spatial dependence is sinusoidal and fills all space, so that adding a monochromatic quantum to a field uniformly increases the entire field's energy (uniformly distributed throughout all space!)"?
Jan
12
comment re-defining the question, field quanta size in field theory?
if you look at the double slit diagram in :physics.uark.edu/hobson/pubs/11.10.TPT.pdf - this shows that he thinks the actual electron is spread as a field and goes through both slits, is he wrong or is this an interpretation only?
Jan
12
comment re-defining the question, field quanta size in field theory?
I must say anna, you have been a great help so far, thankyou :)
Jan
12
comment re-defining the question, field quanta size in field theory?
oh thanks. what does he mean then that the" energy of the quantum is spread out over light years" and "implies that a single mode's spatial dependence is sinusoidal and fills all space, so that adding a monochromatic quantum to a field uniformly increases the entire field's energy (uniformly distributed throughout all space!)"?
Jan
12
comment re-defining the question, field quanta size in field theory?
"Quanta that are superpositions of different frequencies can be more spatially bunched and in this sense more localized, but they are always of infinite extent" from: arxiv.org/ftp/arxiv/papers/1204/1204.4616.pdf
Jan
12
comment re-defining the question, field quanta size in field theory?
physics.uark.edu/hobson/pubs/11.10.TPT.pdf "each quantum is an energy increment of the entire space filling field"
Jan
12
comment re-defining the question, field quanta size in field theory?
anna so field quanta are not infinite in extended in space then? but you said the probability is small, so they could be...
Jan
12
comment re-defining the question, field quanta size in field theory?
and "if we assume the wavefunction is real and doesn't collapse then each quanta is a wave spread across the whole of space, correct?" whats the answer please?
Jan
12
comment re-defining the question, field quanta size in field theory?
Anna that has not answered my question, are field quanta of a field infinite in size and what does he mean by saving there energy is spread out over light years...
Jan
12
comment re-defining the question, field quanta size in field theory?
im sorry wont happen again. I have altered it slightly
Jan
12
comment re-defining the question, field quanta size in field theory?
I know the question is similar but I have asked a new bit at the end, about if the wavefunction is real and doesnt collapse is a field quanta extended accross all of space, an answer to this, as with my original question would be greatly appreciated
Jan
12
comment confusion on quantum field theory
and he says the energy is spread over light years, what does this and the infinite extent of the field quanta in field theory mean? that an electron/field quanta extends everywhere in the universe?
Jan
12
comment Field quanta- infinite in extent?
vladimar are you sure your not getting confused with QM by itself? this question is in regards to QFT and a field quanta being infinite in size.
Jan
12
comment Field quanta- infinite in extent?
so its the probability amplitude of the field quanta thats extended to infinite? not that the actual electron(field quanta) is infinite in size? Art Hobson clearly says the energy is spread over light years, what does this mean?
Jan
12
comment Field quanta- infinite in extent?
he also says there energy is sometimes spread over light years? huh