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Phase structure of (3+1)-dimensional dense two-color QCD at T=0 in the strong coupling limit with the tensor renormalization group

Yuto Sugimoto*

Shinichiro Akiyama†

Yoshinobu Kuramashi‡

  • *Contact author: sugimoto@nucl.phys.tohoku.ac.jp
  • †Contact author: akiyama@ccs.tsukuba.ac.jp
  • ‡Contact author: kuramasi@het.ph.tsukuba.ac.jp
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Phys. Rev. D 113, 034503 – Published 12 February, 2026

DOI: https://doi.org/10.1103/jd1r-cqrc

Abstract

We investigate the phase structure of the (3+1)-dimensional strong coupling two-color QCD at zero temperature (T=0) with finite chemical potential using the tensor renormalization group method. The chiral and diquark condensates and the quark number density are evaluated as a function of the chemical potential. We further determine the critical exponents associated with the diquark condensate, which suggest consistency with the predictions of mean-field theory.

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Phys. Rev. D 113, 034503– Published 12 February, 2026
  • Received 17 December 2025
  • Accepted 22 January 2026
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