arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math-ph/0508053math-phmath.MPmath.PR
收藏

关于耦合到标量场的晶体中统计平衡的收敛性

On the Convergence to a Statistical Equilibrium in the Crystal Coupled to a Scalar Field

T. V. Dudnikova, A. I. Komech

摘要:

我们考虑耦合到具有$n$分量的谐振晶体的场的动力学,其维数为$d$,$d,n\ge 1$。相对于$\R^d$的子群$\Z^d$,晶体和动力学是不变性的。初始数据是具有有限平均能量密度的随机函数,其也满足Rosenblatt-或Ruggimov-Linnik-型混合条件。此外,初始相关函数相对于离散子群$\Z^d$是不变性的。我们研究解在时间$t\in\R$的分布$μ_t$。主要结果是$μ_t$收敛到高斯测度为$t\to\infty$,其中$μ_\infty$相对于子群$\Z^d$是平移不变的。

英文摘要:

We consider the dynamics of a field coupled to a harmonic crystal with $n$ components in dimension $d$, $d,n\ge 1$. The crystal and the dynamics are translation-invariant with respect to the subgroup $\Z^d$ of $\R^d$. The initial data is a random function with a finite mean density of energy which also satisfies a Rosenblatt- or Ibragimov-Linnik-type mixing condition. Moreover, initial correlation functions are translation-invariant with respect to the discrete subgroup $\Z^d$. We study the distribution $μ_t$ of the solution at time $t\in\R$. The main result is the convergence of $μ_t$ to a Gaussian measure as $t\to\infty$, where $μ_\infty$ is translation-invariant with respect to the subgroup $\Z^d$.

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。

↑