Dyons and Roberge - Weiss transition in lattice QCD

We study lattice QCD with Nf = 2 Wilson fermions at nonzero imaginary chemical potential and nonzero temperature. We relate the Roberge - Weiss phase transition to the properties of dyons which are constituents of the KvBLL calorons. We present numerical evidence that the characteristic features of...

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Bibliographic Details
Main Authors: Bornyakov, V. G., Boyda, D. L., Goy, V. A., Ilgenfritz, E.-M., Martemyanov, B. V., Molochkov, A. V., Nakamura, Atsushi, Nikolaev, A. A., Zakharov, V. I.
Format: Conference Proceeding
Language:English
Subjects:
Chemical potential
Fermions
Phase transitions
Quantum chromodynamics
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Summary:We study lattice QCD with Nf = 2 Wilson fermions at nonzero imaginary chemical potential and nonzero temperature. We relate the Roberge - Weiss phase transition to the properties of dyons which are constituents of the KvBLL calorons. We present numerical evidence that the characteristic features of the spectral gap of the overlap Dirac operator as function of an angle modifying the boundary condition are determined by the Z3 sector of the respective imaginary chemical potential. We then demonstrate that dyon excitations in thermal configurations could be responsible (in line with perturbative excitations) for these phenomena.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201713703002