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arXiv · 1704.02929

Vacuum expectation value of twist fields

A. V. Belitsky
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Abstract

Twist fields emerge in a number of physical applications ranging from entanglement entropy to scattering amplitudes in four-dimensional gauge theories. In this work, their vacuum expectation values are studied in the path integral framework. By performing a gauge transformation, their correlation functions are reduced to field theory of matter fields in external Aharonov-Bohm vortices. The resulting functional determinants are then analyzed within the zeta function regularization for the spectrum of Bessel zeros and concise formulas are derived.

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A. V. Belitsky. 2017-05-09. Vacuum expectation value of twist fields. https://doi.org/10.1103/physrevd.96.066026

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