具有热边界力和机械边界力的链的流体动力学极限
Hydrodynamic limit for a chain with thermal and mechanical boundary forces
AI总结:
本文研究一维开放谐振子链在边界恒温器与外部张力作用下的流体动力学极限,证明体积拉伸和能量经验剖面在扩散尺度下收敛于非线性扩散保守偏微分方程组的解。
摘要:
我们证明了一维谐振子链在动量符号随机翻转情况下的流体动力学极限。该系统是开放的,在边界处受到两个恒温器的作用,并在其中一个端点受到外部张力的作用。在空间-时间的扩散尺度下,我们证明了两个局部守恒量——体积拉伸和能量——的经验剖面收敛于一个非线性扩散保守偏微分方程组的解。
英文摘要:
We prove the hydrodynamic limit for a one dimensional harmonic chain with a random flip of the momentum sign. The system is open and subject to two thermostats at the boundaries and to an external tension at one of the endpoints. Under a diffusive scaling of space-time, we prove that the empirical profiles of the two locally conserved quantities, the volume stretch and the energy, converge to the solution of a non-linear diffusive system of conservative partial differential equations.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。