Vacuum expectation value of twist fields

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4 Scopus citations


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.

Original languageEnglish (US)
Article number066026
JournalPhysical Review D
Issue number6
StatePublished - Sep 21 2017

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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