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Physics
Classical Physics
Thermodynamics
Analogies between temperature and time in thermodynamics
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[QUOTE="Andy Resnick, post: 6022488, member: 20368"] Ryogo Kubo, in the early 1950s, noticed that the quantum mechanical partition function (used for many-body problems) could be regarded as a time-evolution operator in "imaginary time". That is, finite-temperature many-body physics problems can be reformulated in terms of a 'zero-temperature' imaginary-time problem. This approach he been developed over the decades and applied to a variety of problems (electron-phonon interactions, fluctuation-dissipation and linear response theories). Now, a caveat: statistical mechanics is not a proxy for thermodynamics; statistical mechanics can be considered a microscopic foundation for thermostatics and possibly for thermokinetics. Regarding the abstract, I disagree that elementary thermodynamics has little to discover: indeed, there remain considerable open questions, ranging from the general (such as, when 'temperature' exists) to the more specific (such as, is the contact angle a thermodynamic quantity?) Does that help? [/QUOTE]
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Thermodynamics
Analogies between temperature and time in thermodynamics
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