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arXiv 0802.1246cond-mat.stat-mech
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临界量子Ising链中的序参量统计

Order parameter statistics in the critical quantum Ising chain

Austen Lamacraft, Paul Fendley

摘要:

在服从超标度的量子自旋系统中,总磁化强度的概率分布在临界时呈现普适的标度形式。我们精确地得到了临界量子Ising自旋链基态和第一激发态的标度函数。这是通过一个显着的关系,各向异性近藤问题的配分函数,它可以通过利用系统的可积性计算。

英文摘要:

In quantum spin systems obeying hyperscaling, the probability distribution of the total magnetization takes on a universal scaling form at criticality. We obtain this scaling function exactly for the ground state and first excited state of the critical quantum Ising spin chain. This is achieved through a remarkable relation to the partition function of the anisotropic Kondo problem, which can be computed by exploiting the integrability of the system.

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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