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arXiv 1004.0375cond-mat.mes-hall
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一维维格纳晶体的平衡

Equilibration of a one-dimensional Wigner crystal

K. A. Matveev, A. V. Andreev, M. Pustilnik

摘要:

一维相互作用电子系统的平衡需要改变左右移动粒子的数量的过程。在低温下,这种过程被强烈抑制,导致缓慢弛豫到平衡。我们研究的情况下,无自旋的电子具有很强的长程排斥,当电子形成一个一维维格纳晶体。我们找到的弛豫率占Umklapp散射的声子在晶体中。对于具有平方反比斥力的粒子的可积模型,弛豫速率为零。

英文摘要:

Equilibration of a one-dimensional system of interacting electrons requires processes that change the numbers of left- and right-moving particles. At low temperatures such processes are strongly suppressed, resulting in slow relaxation towards equilibrium. We study this phenomenon in the case of spinless electrons with strong long-range repulsion, when the electrons form a one-dimensional Wigner crystal. We find the relaxation rate by accounting for the Umklapp scattering of phonons in the crystal. For the integrable model of particles with inverse-square repulsion, the relaxation rate vanishes.

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