Landau damping of gluons in the two-flavor color superconducting Fulde-Ferrell phase

Sharma, Rajnikant

doi:10.1140/epja/i2017-12249-x

Eur. Phys. J. A

2017

DOI: 10.1140/epja/i2017-12249-x

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Landau damping of gluons in the two-flavor color superconducting Fulde-Ferrell phase

Rajnikant Sharma

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Shear viscosity of two-flavor inhomogenous color superconducting quark matter

Sarkar¹,

Sharma²

2017

Phys. Rev. D

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We present the first calculation of the shear viscosity for two-flavor plane wave (FF) color superconducting quark matter. This is a member of the family of crystalline color superconducting phases of dense quark matter that may be present in the cores of neutron stars. The paired quarks in the FF phase feature gapless excitations on surfaces of crescent shaped blocking regions in momentum space and participate in transport. We calculate their contribution to the shear viscosity. We note that they also lead to dynamic screening of transverse t 1 , t 2 , t 3 gluons which are undamped in the 2SC phase. The exchange of these gluons is the most important mechanism of the scattering of the paired quarks. We find that the shear viscosity of the paired quarks is roughly a factor of 100 smaller compared to the shear viscosity of unpaired quark matter. Our results may have implications for the damping of r−modes in rapidly rotating, cold neutron stars.

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Shear viscosity of two-flavor inhomogenous color superconducting quark matter

Sarkar¹,

Sharma²

2017

Phys. Rev. D

Self Cite

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Landau damping of gluons in the two-flavor color superconducting Fulde-Ferrell phase

Cited by 1 publication

References 72 publications

Shear viscosity of two-flavor inhomogenous color superconducting quark matter

Shear viscosity of two-flavor inhomogenous color superconducting quark matter

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