All Questions
Tagged with quantum-field-theory statistical-mechanics
304
questions
25
votes
4
answers
4k
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What is a simple intuitive way to see the relation between imaginary time (periodic) and temperature relation?
I guess I never had a proper physical intuition on, for example, the "KMS condition". I have an undergraduate student who studies calculation of Hawking temperature using the Euclidean path ...
- 727
57
votes
0
answers
1k
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Systematic approach to deriving equations of collective field theory to any order
The collective field theory (see nLab for a list of main historical references) which came up as a generalization of the Bohm-Pines method in treating plasma oscillations often used in the study of ...
Zoran Škoda
7
votes
1
answer
1k
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Is there a fully quantum-field theoretic treatise of Planck's Law for black-body radiation?
I recall from my undergraduate statistical mechanics and QM classes that Planck's Law may be derived fairly straight-forwardly by considering the density of states of EM radiation in thermal ...
- 1,820
3
votes
1
answer
131
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Why is $\rho_m$ proportional to the deviation from critical temperature in critical phenomena?
In Peskin and Schroeder's chapter 12 about the renormalization group, it is stated that the parameter $\rho_m=m^2/M^2$, where $m$ is the mass and $M$ is the renormalization scale, is proportional to $...
Felix