Non-equilibrium temperature of well-developed quantum turbulence

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A non-equilibrium effective temperature of quantum vortex tangles is defined as the average energy of closed vortex loops. The resulting thermodynamic expressions for the entropy and the energy in terms of the temperature of the tangle are confirmedby a microscopic analysis based on a potential distribution function for the length of vortex loops. Furthermore, theseexpressions for the entropy and energy in terms of temperature are analogous to those of black holes: this may be of interest forestablishing further connections between topological defects in superfluids and cosmology.
Lingua originaleEnglish
pagine (da-a)2306-2310
Numero di pagine5
Stato di pubblicazionePublished - 2009

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