Polyakov loop model with exact static quark determinant in the 't Hooft-Veneziano limit: U(N) case

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1. Verfasser: Voloshyn, S.
Format: Preprint
Veröffentlicht: 2025
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author Voloshyn, S.
author_facet Voloshyn, S.
contents I investigate a $d$-dimensional $U(N)$ Polyakov loop model that includes the exact static determinant with $N_f$ degenerate quark flavor and depends explicitly on the quark mass and chemical potential. In the large $N, N_f$ limit mean field gives the exact solution, and the core of the Polyakov loop model is reduced to a deformed unitary matrix model, which I solve exactly. I compute the free energy, the expectation value of the Polyakov loop, and the quark condensate. The phase diagram of the model and the type of phase transition is investigated and shows it depends on the ratio $κ=N_f/N$.
format Preprint
id arxiv_https___arxiv_org_abs_2507_00689
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Polyakov loop model with exact static quark determinant in the 't Hooft-Veneziano limit: U(N) case
Voloshyn, S.
High Energy Physics - Lattice
81T25 (Primary) 81V05, 82B26 (Secondary)
I investigate a $d$-dimensional $U(N)$ Polyakov loop model that includes the exact static determinant with $N_f$ degenerate quark flavor and depends explicitly on the quark mass and chemical potential. In the large $N, N_f$ limit mean field gives the exact solution, and the core of the Polyakov loop model is reduced to a deformed unitary matrix model, which I solve exactly. I compute the free energy, the expectation value of the Polyakov loop, and the quark condensate. The phase diagram of the model and the type of phase transition is investigated and shows it depends on the ratio $κ=N_f/N$.
title Polyakov loop model with exact static quark determinant in the 't Hooft-Veneziano limit: U(N) case
topic High Energy Physics - Lattice
81T25 (Primary) 81V05, 82B26 (Secondary)
url https://arxiv.org/abs/2507.00689