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QCD Critical Point and Complex Chemical Potential Singularities

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arxiv hep-lat/0603014 v2 pith:6AXIK4RC submitted 2006-03-15 hep-lat hep-phnucl-th

M.A. Stephanov This is my paper · ORCID
classification hep-lathep-phnucl-th
keywords complexsingularitiescriticalpointpotentialaimedargumentsbaryo-chemical
verification ladder T0 review T1 audit T2 compute T3 formal
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The thermodynamic singularities of QCD in the plane of complex baryo-chemical potential mu are studied. Predictions are made using scaling and universality arguments in the vicinity of the massless quark limit. The results are illustrated by a calculation of complex mu singularities in a random matrix model at finite temperature. Implications for lattice QCD simulations aimed at locating the QCD critical point are discussed.

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Analytic structure of the QCD phase diagram in the complex-temperature plane

    hep-th 2026-06 unverdicted novelty 7.0 of 10

    Extracts the continuum location of the nearest complex-T singularity from lattice QCD at μ=0 via iterated conformal-Padé and shows its trajectories share the same scaling variables as complex-μ singularities.

  2. QCD Chiral Crossover Line from Lee-Yang Edge Singularities

    hep-lat 2026-08 conditional novelty 6.0 of 10

    Using lattice-derived Lee-Yang zeros and chiral universality, this paper reconstructs the QCD crossover curvature kappa2 = 0.012(+0.002,-0.004), consistent with prior lattice results, without inputting the curvature itself.

  3. Lee-Yang zeros and edge singularity in a mean-field approach

    hep-ph 2026-05 unverdicted novelty 4.0 of 10

    The study analyzes temperature dependence of Lee-Yang zeros and edge singularities in a finite-volume mean-field QCD model and compares finite-size scaling methods for identifying the critical point.

  4. Exploring the QCD phase diagram through correlations and fluctuations

    nucl-th 2025-12 accept novelty 3.0 of 10

    A synthesis of the QCD critical point search: theoretical estimates cluster at T_C≈100–120 MeV, μ_B≈550–650 MeV, and BES-II cumulant data match non-critical baselines above 10 GeV while 7.7–9 GeV deviations remain une...

  5. The QCD phase diagram, universal scaling, and Lee-Yang zeros

    hep-lat 2025-01 conditional novelty 2.0 of 10

    Scaling fits give a chiral transition temperature around 144 MeV at one lattice spacing and a not yet continuum extrapolated QCD critical endpoint near T=105 MeV, mu_B=422 MeV.

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