Gluon Condensate in Pion Superfluid beyond Mean Field Approximation

Details Gluon Condensate in Pion Superfluid beyond Mean Field Approximation Gluon Condensate in Pion Superfluid beyond Mean Field Approximation

2010-12-10

arxiv.org/abs/1012.2158v2

Phys.Rev.C83:038201,2011

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures

Scientific paper

10.1103/PhysRevC.83.038201

We study gluon condensate in a pion superfluid, through 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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