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The 't Hooft-Veneziano limit of the Polyakov loop models

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arxiv 2111.07103 v1 pith:4EXCGUJD submitted 2021-11-13 hep-lat hep-th

The 't Hooft-Veneziano limit of the Polyakov loop models

classification hep-lat hep-th
keywords limitmodelsbaryoncorrelationhooft-venezianoloopnumberphase
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The broad class of U(N) and SU(N) Polyakov loop models on the lattice are solved exactly in the combined large N, Nf limit, where N is a number of colors and Nf is a number of quark flavors, and in any dimension. In this 't Hooft-Veneziano limit the ratio N/Nf is kept fixed. We calculate both the free energy and various correlation functions. The critical behavior of the models is described in details at finite temperatures and non-zero baryon chemical potential. Furthermore, we prove that the calculation of the N-point (baryon) correlation function reduces to the geometric median problem in the confinement phase. In the deconfinement phase we establish an existence of the complex masses and an oscillating decay of correlations in a certain region of parameters.

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

    hep-lat 2025-07 unverdicted novelty 6.0

    In the 't Hooft-Veneziano limit the Polyakov loop model with exact static quark determinant reduces to a deformed unitary matrix model that is solved exactly, yielding free energy, Polyakov loop expectation value, qua...