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Measuring nonequilibrium temperature of forced oscillators
Hatano, Takahiro (Japan Atomic Energy Research Institute. Center for Promotion of Computational Science and Engineering)
Jou i Mirabent, David, 1953- (Universitat Autònoma de Barcelona. Departament de Física)

Data: 2003
Resum: The meaning of temperature in nonequilibrium thermodynamics is considered by using a forced harmonic oscillator in a heat bath, where we have two effective temperatures for the position and the momentum, respectively. We propose a concrete model of a thermometer to testify the validity of these different temperatures from the operational point of view. It is found that the measured temperature depends on a specific form of interaction between the system and a thermometer, which means that the zeroth law of thermodynamics cannot be immediately extended to nonequilibrium cases.
Drets: Tots els drets reservats.
Llengua: Anglès.
Document: article ; recerca ; publishedVersion
Publicat a: Physical review. E : Statistical, nonlinear, and soft matter physics, Vol. 67, Number 2 (February 2003) , p. 026121/1-026121/6, ISSN 1539-3755

DOI: 10.1103/PhysRevE.67.026121

6 p, 82.7 KB

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