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arXiv 2109.01389math-phcond-mat.stat-mechmath.APmath.MPmath.PR
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离散非线性薛定谔方程的随机热化

A stochastic thermalization of the Discrete Nonlinear Schrödinger Equation

Amirali Hannani, Stefano Olla

摘要:

我们引入了一个质量守恒的随机扰动离散非线性薛定谔方程模型的行动,在一个给定的温度下的热浴。我们证明了相应的正则吉布斯分布是唯一不变测度。在环面上的一维立方聚焦的情况下,我们证明了在大时间,连续近似和低温的限制下,该解决方案收敛到连续方程的稳定波,使能量最小化,对于一个给定的质量。

英文摘要:

We introduce a mass conserving stochastic perturbation of the discrete nonlinear Schrödinger equation that models the action of a heat bath at a given temperature. We prove that the corresponding canonical Gibbs distribution is the unique invariant measure. In the one-dimensional cubic focusing case on the torus, we prove that in the limit for large time, continuous approximation, and low temperature, the solution converges to the steady wave of the continuous equation that minimizes the energy for a given mass.

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。

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