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arXiv math-ph/0511054math-phcond-mat.stat-mechhep-thmath.MP
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SLE及相关过程中应力-能量张量的共形约束识别

Identification of the stress-energy tensor through conformal restriction in SLE and related processes

B. Doyon, V. Riva, J. Cardy

摘要:

本文在Schramm-Loewner演化理论框架下,利用Schramm-Loewner演化理论及相关过程,导出了共形场论的沃德恒等式。这一结果的灵感来自于观察到SLE的特定事件具有正确的物理自旋和标度维数,并通过共形限制性质证明,导致识别一些概率与涉及体应力-能量张量的关联函数。基于共形约束,推导仅在kappa=8/3时才成立,这对应于中心荷c=0和在相应的O(n)模型中环路被抑制的情况。

英文摘要:

We derive the Ward identities of Conformal Field Theory (CFT) within the framework of Schramm-Loewner Evolution (SLE) and some related processes. This result, inspired by the observation that particular events of SLE have the correct physical spin and scaling dimension, and proved through the conformal restriction property, leads to the identification of some probabilities with correlation functions involving the bulk stress-energy tensor. Being based on conformal restriction, the derivation holds for SLE only at the value kappa=8/3, which corresponds to the central charge c=0 and the case when loops are suppressed in the corresponding O(n) model.

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