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Critical endpoints of three-dimensional finite density SU(3) spin model with tensor renormalization group

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arxiv 2503.05144 v1 pith:S3XFRKRX submitted 2025-03-07 hep-lat

Critical endpoints of three-dimensional finite density SU(3) spin model with tensor renormalization group

classification hep-lat
keywords criticalfinitemodeldensityendpointsgrouprenormalizationspin
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the phase diagram of the three-dimensional SU(3) spin model with finite chemical potential, which is an effective Polyakov loop model for finite density QCD, using the tensor renormalization group method. We successfully determine the location of the critical endpoints being free from the complex action problem in the standard Monte Carlo approach. The critical values of the parameters show the consistency with previous ones obtained by other analytic and numerical methods.

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  1. Tensor renormalization group study of cold and dense QCD in the strong coupling limit

    hep-lat 2026-01 conditional novelty 6.0

    In strong-coupling lattice QCD at Nτ=8, the chiral and nuclear transition endpoints coincide at m_c≈2.06, and a first-order transition persists at m=2.07 on a 1024^4 zero-temperature lattice.