Gluon condensate in a pion superfluid beyond the mean-field approximation

Yin Jiang; Pengfei Zhuang

doi:10.1103/PhysRevC.83.038201

Gluon condensate in a pion superfluid beyond the mean-field approximation

Yin Jiang^*
, Pengfei Zhuang

^*Corresponding author for this work

Tsinghua University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We study gluon condensate in a pion superfluid by calculating the equation of state of the system in the Nambu-Jona-Lasinio model. While in mean-field approximation the growing pion condensate leads to an increasing gluon condensate, meson fluctuations reduce the gluon condensate, and the broken scalar symmetry can be smoothly restored at finite isospin density.

Original language	English
Article number	038201
Journal	Physical Review C - Nuclear Physics
Volume	83
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.83.038201
State	Published - 3 Mar 2011
Externally published	Yes

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10.1103/PhysRevC.83.038201

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title = "Gluon condensate in a pion superfluid beyond the mean-field approximation",

abstract = "We study gluon condensate in a pion superfluid by calculating the equation of state of the system in the Nambu-Jona-Lasinio model. While in mean-field approximation the growing pion condensate leads to an increasing gluon condensate, meson fluctuations reduce the gluon condensate, and the broken scalar symmetry can be smoothly restored at finite isospin density.",

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AB - We study gluon condensate in a pion superfluid by calculating the equation of state of the system in the Nambu-Jona-Lasinio model. While in mean-field approximation the growing pion condensate leads to an increasing gluon condensate, meson fluctuations reduce the gluon condensate, and the broken scalar symmetry can be smoothly restored at finite isospin density.

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DO - 10.1103/PhysRevC.83.038201

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Gluon condensate in a pion superfluid beyond the mean-field approximation

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