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Results tagged with field-theory
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user 86772
For questions where the dynamical variables are fields, that is, functions of several variables (typically, one time coordinate and several space coordinates). Comprises both classical field theory and quantum field theory. Use this tag when the question applies to both classical and quantum phenomena. Otherwise, use the specific tag instead.
3
votes
1
answer
219
views
Why does propagator for SDE involve response variable?
Being trained as a mathematician I am trying to understand stochastic field theory (i.e. field theory applied for dynamics of stochastic processes, e.g. SDE) and I have a difficulty at one point.
Su …
- 241
8
votes
1
answer
904
views
Why perturbation theory in Fourier space works?
I am trying to learn some statistical field theory topics having pure math background and I cannot understand some things. I would formulate the question for time-dependent fields but I guess it makes …
- 241