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Chiral and deconfinement thermal transitions at finite quark spin polarization in lattice QCD simulations

V. V. Braguta1,*, M. N. Chernodub2,3,†, and A. A. Roenko1,‡

  • *Contact author: vvbraguta@theor.jinr.ru
  • †Contact author: maxim.chernodub@univ-tours.fr
  • ‡Contact author: roenko@theor.jinr.ru
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Phys. Rev. D 111, 114508 – Published 16 June, 2025

DOI: https://doi.org/10.1103/xptn-qgfl

Abstract

We study the effect of finite spin quark density on the chiral and deconfinement thermal crossovers using numerical simulations of lattice QCD with two dynamical light quarks. The finite spin density is introduced by the quark spin potential in the canonical formulation of the spin operator. We show that both chiral and deconfinement temperatures are decreasing functions of the spin potential. We determine the parabolic curvatures of crossover temperatures in a limit of physical quark masses.

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Phys. Rev. D 111, 114508– Published 16 June, 2025
  • Received 17 April 2025
  • Accepted 28 May 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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