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Fermionic determinant for SU(N) caloron with nontrivial holonomy

Nikolay Gromov·Sergey Slizovskiy
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Abstract

In the finite-temperature Yang-Mills theory we calculate the functional determinant for fermions in the fundamental representation of the SU(N) in the background of an instanton with non-trivial values of the Polyakov line at spatial infinity. This object, called the Kraan--van Baal -- Lee--Lu caloron, can be viewed as composed of N Bogomolny--Prasad--Sommerfeld monopoles (or dyons). We compute analytically two leading terms of the fermionic determinant at large separations between dyons.

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Nikolay Gromov, Sergey Slizovskiy. 2006-05-19. Fermionic determinant for SU(N) caloron with nontrivial holonomy. https://doi.org/10.1103/physrevd.73.025022

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