Searching for the BCS phase at nonzero isospin asymmetry

Brandt BB, Cuteri F, Endrödi G (2021)
arXiv:2112.11113.

Preprint | Englisch
 
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Autor*in
Brandt, Bastian B.; Cuteri, Francesca; Endrödi, GergelyUniBi
Abstract / Bemerkung
According to perturbation theory predictions, QCD matter in the zero-temperature, high-density limits of QCD at nonzero isospin chemical potential is expected to be in a superfluid Bardeen-Cooper-Schrieffer (BCS) phase of uuu and dˉ\bar{d}dˉ Cooper pairs. It is also expected, on symmetry grounds, that such phase connects via an analytical crossover to the phase with Bose-Einstein condensation (BEC) of charged pions at μI≥mπ/2\mu_\text{I}\geq m_\pi/2μI​≥mπ​/2. With lattice results, showing some indications that the deconfinement crossover also smoothly penetrates the BEC phase, the conjecture was made that the former connects continuously to the BEC-BCS crossover. We compute the spectrum of the Dirac operator, and use generalized Banks-Casher relations, to test this conjecture and identify signatures of the superfluid BCS phase.
Erscheinungsjahr
2021
Zeitschriftentitel
arXiv:2112.11113
Page URI
https://pub.uni-bielefeld.de/record/2963711

Zitieren

Brandt BB, Cuteri F, Endrödi G. Searching for the BCS phase at nonzero isospin asymmetry. arXiv:2112.11113. 2021.
Brandt, B. B., Cuteri, F., & Endrödi, G. (2021). Searching for the BCS phase at nonzero isospin asymmetry. arXiv:2112.11113
Brandt, B. B., Cuteri, F., and Endrödi, G. (2021). Searching for the BCS phase at nonzero isospin asymmetry. arXiv:2112.11113.
Brandt, B.B., Cuteri, F., & Endrödi, G., 2021. Searching for the BCS phase at nonzero isospin asymmetry. arXiv:2112.11113.
B.B. Brandt, F. Cuteri, and G. Endrödi, “Searching for the BCS phase at nonzero isospin asymmetry”, arXiv:2112.11113, 2021.
Brandt, B.B., Cuteri, F., Endrödi, G.: Searching for the BCS phase at nonzero isospin asymmetry. arXiv:2112.11113. (2021).
Brandt, Bastian B., Cuteri, Francesca, and Endrödi, Gergely. “Searching for the BCS phase at nonzero isospin asymmetry”. arXiv:2112.11113 (2021).

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arXiv: 2112.11113

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