期刊
JOURNAL OF STATISTICAL PHYSICS
卷 145, 期 5, 页码 1224-1255出版社
SPRINGER
DOI: 10.1007/s10955-011-0385-6
关键词
Thermal conductivity; Green-Kubo formula; Non-equilibrium stationary states
资金
- ERC [AdG 246953]
- French Ministry of Education [ANR-10-BLAN 0108]
- Agence Nationale de la Recherche (ANR) [ANR-10-BLAN-0108] Funding Source: Agence Nationale de la Recherche (ANR)
We consider the stationary states of a chain of n anharmonic coupled oscillators, whose deterministic Hamiltonian dynamics is perturbed by random independent sign change of the velocities (a random mechanism that conserve energy). The extremities are coupled to thermostats at different temperature T (a) and T (r) and subject to constant forces tau (a) and tau (r) . If the forces differ tau (a) not equal tau (r) the center of mass of the system will move of a speed V (s) inducing a tension gradient inside the system. Our aim is to see the influence of the tension gradient on the thermal conductivity. We investigate the entropy production properties of the stationary states, and we prove the existence of the Onsager matrix defined by Green-Kubo formulas (linear response). We also prove some explicit bounds on the thermal conductivity, depending on the temperature.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据