Holographic model with powerlaw Maxwell field for color superconductivity
Abstract
Studying the color superconductivity (CSC) phase is important to understand the physics in the core of the neutron stars which is the only known context where the gravitational force squeezes the matter to the sufficiently high density and hence the CSC phase might appear. We propose a simple holographic dual description of the CSC phase transition in the realistic YangMills theory with a powerlaw Maxwell field. We find the CSC phase transition with the large color number in the deconfinement phase, which is not found in the case of the usual Maxwell field, if the power parameter characterizing for the powerlaw Maxwell field is sufficiently lower than one but above $1/2$ and the chemical potential is above a critical value. However, the power parameter is not arbitrary below one because when this parameter is sufficiently far away from one it leads to the occurrence of the CSC state in the confinement phase which is not compatible with a nonzero vacuum expectation value of the color nonsinglet operator.
 Publication:

arXiv eprints
 Pub Date:
 September 2021
 arXiv:
 arXiv:2109.07927
 Bibcode:
 2021arXiv210907927N
 Keywords:

 High Energy Physics  Theory;
 General Relativity and Quantum Cosmology
 EPrint:
 16 pages, 10 figures