hal-00280839, version 2
Energy transport in stochastically perturbed lattice dynamics
Archive for Rational Mechanics and Analysis 195, 1 (2009) 171-203
- 1:
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http://www.wias-berlin.de/
WIAS Mohrenstr. 39 10117 Berlin Germany - 2:
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http://www.ceremade.dauphine.fr/index.html
CNRS : UMR7534 – Université Paris IX - Paris Dauphine Place du Maréchal de Lattre de Tassigny 75775 - Paris Cedex 16 France - 3:
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http://www.ma.tum.de
Technische Universität München Zentrum Mathematik der Technischen Universität München Boltzmannstr. 3 D-85747 Garching Germany
Bibliographic reference
- Type of document: Articles in peer-reviewed journal
- Subject:
Mathematics/Probability Mathematics/Mathematical Physics Physics/Mathematical Physics Physics/Condensed Matter/Statistical Mechanics - Title: Energy transport in stochastically perturbed lattice dynamics
- Abstract: We consider lattice dynamics with a small stochastic perturbation of order ε and prove that for a space-time scale of order ε−1 the local spectral density (Wigner function) evolves according to a linear transport equation describing inelastic collisions. For an energy and momentum conserving chain the transport equation predicts a slow decay, as 1/√t, for the energy current correlation in equilibrium. This is in agreement with previous studies using a different method.
- Fulltext language: English
- DOI: 10.1007/s00205-008-0205-6
- Journal:
Archive for Rational Mechanics and Analysis Publisher Springer Verlag (Germany) ISSN 0003-9527 (eISSN : 1432-0673) - Audience: international
- Publication date: 2009
- Volume: 195
- Issue: 1
- Page, identifiant, ...: 171-203
- Keyword(s): Wigner functions – semiclassical limits – lattice dynamics – conservative stochastic dynamics – phonon Boltzmann equation – energy transport
- Classification: 82C21; 82C70; 82C31
- ANR Project:
Project Id ANR LHMSHE n.BLAN07-2184264
Attached file list to this document:
- hal-00280839, version 2
- http://hal.archives-ouvertes.fr/hal-00280839
- oai:hal.archives-ouvertes.fr:hal-00280839
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- Submitted on: Friday, 12 September 2008 14:42:05
- Updated on: Thursday, 25 November 2010 19:03:02







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