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Critical couplings in Crystalline Color superconductivity

2001/06/30 by Deog Ki Hong, Hong, Deog Ki, Y. J. Sohn +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con #hep-ph #nucl-th

paper · pdf · doi:10.48550/arxiv.hep-ph/0107003

9 pages, 1 figure

arxiv created 2001/06/30 · arxiv updated 2009/11/30

Abstract

Solving the Schwinger-Dyson equations, we analyze the pairing of quarks in asymmetric quark matter where quarks have different chemical potentials. We show that in the asymmetric quark matter a crystalline color-superconducting gap opens when the quark coupling is stronger than a critical value. The critical coupling is nonzero, since the infrared divergence is lessened when the momenta of pairing quarks are not opposite. The superconducting gaps and the critical couplings are calculated both at high and intermediate densities.

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