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arXiv 2402.00767math.PRmath-phmath.DGmath.MP
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zeta正则化行列式的圈汤表示与等变Symanzik恒等式

Loop soup representation of zeta-regularised determinants and equivariant Symanzik identities

Pierre Perruchaud, Isao Sauzedde

AI总结:

本文推导了流形上向量丛拉普拉斯型算子行列式的随机表示(逆幂为布朗圈汤和乐乘积的期望,适用于2/3维紧致流形),并得出连续性、共形不变性等推论,还构造了最小耦合标量场并证明其满足Symanzik恒等式。

摘要:

我们推导了流形上向量丛拉普拉斯型算子行列式的随机表示:这些行列式的逆幂可表示为布朗圈汤定义的和乐乘积的期望。结果适用于2或3维紧致流形(含质量项或边界),并得出若干推论,包括行列式作为算子函数的连续性,以及曲面上行列式的共形不变性。该表达式可构造与给定随机光滑规范场最小耦合的标量场,证明其满足Symanzik恒等式;部分结果是A. Kassel和T. Lévy离散工作的连续类比。

英文摘要:

We derive a stochastic representation for determinants of Laplace-type operators on vectors bundles over manifolds. Namely, inverse powers of those determinants are written as the expectation of a product of holonomies defined over Brownian loop soups. Our results hold over compact manifolds of dimension 2 or 3, in the presence of a mass or a boundary. We derive a few consequences, including some continuity of these determinants as a function of the operator, and the conformal invariance of the determinant on surfaces. This expression allows us to construct the scalar field minimally coupled to a prescribed random smooth gauge field, which we prove obeys the so-called Symanzik identities. Some of these results are continuous analogues of the work of A. Kassel and T. Lévy in the discrete.

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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