arXiv Open Access 2014

Anomalous law of cooling

Luciano C. Lapas Rogelma M. S. Ferreira Fernando A. Oliveira J. Miguel Rubí

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Abstrak

We analyze the temperature relaxation phenomena of systems in contact with a thermal reservoir that undergo a non-Markovian diffusion process. From a generalized Langevin equation, we show that the temperature is governed by a law of cooling of the Newton's law type in which the relaxation time depends on the velocity autocorrelation and is then characterized by the memory function. The analysis of the temperature decay reveals the existence of an anomalous cooling in which the temperature may oscillate. Despite this anomalous behavior, we show that the variation of entropy remains always positive in accordance with the second law of thermodynamics.

Topik & Kata Kunci

cond-mat.stat-mech

Penulis (4)

Luciano C. Lapas

Rogelma M. S. Ferreira

Fernando A. Oliveira

J. Miguel Rubí

Format Sitasi

APA MLA BibTeX

Lapas, L.C., Ferreira, R.M.S., Oliveira, F.A., Rubí, J.M. (2014). Anomalous law of cooling. https://arxiv.org/abs/1412.4691

Akses Cepat

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Informasi Jurnal

Tahun Terbit: 2014
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓