The imaginary part of the gap function in color superconductivity
arXiv:nucl-th/0606015 · doi:10.1016/j.nuclphysb.2006.08.021
Abstract
We clarify general properties of the energy gap regarding its functional dependence on the energy-momentum dictated by the invariance under a space inversion or a time reversal. Then we derive perturbatively the equation of the imaginary part of the gap function for dense QCD in weak coupling and generalize our results from 2SC case to CFL case. We confirm that the imaginary part is down by relative to the real part in weak coupling. The numerical results show that, up to the leading order, the imaginary part is no larger than one MeV at extremely large densities and can be as large as several MeV the densities are of physical interest.
15 pages, 2 figures, typos corrected, a figure replaced. The version to be appeared in Nucl.Phys. B
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Cited by in corpus (6)
- Color superconductivity in dense quark matter
- Relativistic BCS-BEC crossover in a boson-fermion model
- Induced P-wave superfluidity within full energy-momentum dependent Eliashberg approximation in asymmetric dilute Fermi gases
- Angular Momentum Mixing in a Non-spherical Color Superconductor
- Angular Momentum Mixing in Single Flavor Color Superconductivity with Transverse Pairing
- Higher Angular Momentum Mixing in a Non-spherical Color Superconductor with Time Reversal Invariance Violation