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arXiv 1406.6329hep-thcond-mat.stat-mechmath-phmath.MP
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T型反射

T-Reflection

Gokce Basar, Aleksey Cherman, David A. McGady, Masahito Yamazaki

摘要:

指出了许多物理系统的配分函数存在$T \to -T$温度反射($T$ -反射)对称性。在不知道对称性起源的情况下,我们只能在具有可精确计算的配分函数的系统中检验$T$ -反射对称性的存在。我们发现,$T$反射对称性是目前在各种共形和非共形场论和统计力学模型与已知的配分函数。例如,二维共形场论中的所有极小模型配分函数在$T$ -反射下是不变的。$T$反射对称性的一个有趣性质是它可以被真空能量的移动打破。

英文摘要:

We point out the presence of a $T \to -T$ temperature-reflection ($T$-reflection) symmetry for the partition functions of many physical systems. Without knowledge of the origin of the symmetry, we have only been able to test the existence of $T$-reflection symmetry in systems with exactly-calculable partition functions. We show that $T$-reflection symmetry is present in a variety of conformal and non-conformal field theories and statistical mechanics models with known partition functions. For example, all minimal model partition functions in two-dimensional conformal field theories are invariant under $T$-reflections. An interesting property of the $T$-reflection symmetry is that it can be broken by shifts of the vacuum energy.

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