Thermal Color-superconducting Fluctuations in Dense Quark Matter

Abstract

Thermal fluctuations of the color superconducting order parameter in dense quark matter are investigated in terms of the phenomenological Ginzburg - Landau approach. Our estimates show that fluctuations of the di-quark gap may strongly affect some of thermodynamic quantities even far below and above the critical temperature. If the critical temperature $T_c$ of the di-quark phase transition were rather high ($\text{gsim}(50÷70)$ MeV) one could expect a manifestation of fluctuations of the di-quark gap in the course of heavy ion collisions (above $T_c$). For $T_c\sim 50$MeV color superconducting fluctuations may also affect an initial stage of the hybrid star evolution.

Comments: 19 p. For proc. "Superdence QCD Matter and Compact Stars" at Erevan, Sept. 2003