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周期一维Riesz气体的均匀位移界与Gibbs极限

Uniform displacement bounds and Gibbs limits for periodic one-dimensional Riesz gases

Yan Ru Pei

arXiv 2609.28503首次发表:更新:

AI 中文总结

针对周期一维Riesz气体,证明粒子位移方差界为β^{-1}量级,并建立Gibbs极限与有序匹配,通过电通量比较给出关键估计。

AI 中文摘要

对于具有局域对势 $-|x|^a$($0<a<1$)的中性周期一维Riesz气体,我们证明了粒子位移方差界为 $\beta^{-1}$ 量级,且该界对粒子数一致成立。对数凹性还给出了指数型位移尾部。每个平稳周期热力学极限都是简单的,强度为1,并允许与单位格点进行平稳有序匹配,且具有相同的界。每个极限都满足全直线相互作用的典范Gibbs方程,其中外部势采用普通对称空间主值。该匹配意味着均匀有界的区间数方差,以及在足够低的温度下倒格傅里叶平均的正极限二阶矩。主要估计通过确定性电通量将逆随机Hessian与瞬态长程网络进行比较。

英文摘要

For the neutral periodic one-dimensional Riesz gas with pair potential locally $-|x|^a$, $0<a<1$, we prove a particle-displacement variance bound of order $β^{-1}$, uniformly in the number of particles. Log-concavity also gives exponential displacement tails. Every stationary periodic thermodynamic limit is simple, has intensity one, and admits a stationary ordered matching to the unit lattice with the same bounds. Each limit satisfies the canonical Gibbs equations for the full-line interaction, with an ordinary symmetric spatial principal value for the exterior potential. The matching implies uniformly bounded interval number variance and a positive limiting second moment of the reciprocal-lattice Fourier average at sufficiently low temperature. The main estimate compares the inverse random Hessian, through deterministic electrical flows, to a transient long-range network.

Comments21 pages, 1 figure

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