Running coupling constant from lattice data and bulk viscosity of strange quark matter

Abstract

We study the bulk viscosity of strange quark matter (SQM) in a quasiparticle model at finite chemical potential by extrapolating the previous quasiparticle model of finite temperature lattice QCD. The more proper bulk viscosity coefficient can be given in this model where chemical potential $\mu$ and coupling constant $\text{g}$ are interdependent. We also apply our result to determine the critical rotation of strange stars by r-mode instability window. Our model is compatible to the millisecond pulsar data for a wide range of mass and radius of the stars.

11pages,7figures

References in corpus (9)

• A new class of unstable modes of rotating relativistic stars
• The Equation of State of Deconfined Matter at Finite Chemical Potential in a Quasiparticle Description
• Probing strange stars and color superconductivity by r-mode instabilities in millisecond pulsars
• From QCD lattice calculations to the equation of state of quark matter
• How to identify a Strange Star
• Medium effects in strange quark matter and strange stars
• Shear viscosity in ${\varphi }^4$ theory from an extended ladder resummation
• Stability of the r-modes in white dwarf stars
• The Critical Rotation of Strange Stars and Rapidly Rotating Pulsars

Cited by in corpus (14)

• Anisotropic Hydrodynamics, Bulk Viscosities and R-Modes of Strange Quark Stars with Strong Magnetic Fields
• Bulk viscosity of strange quark matter: Urca versus non-leptonic processes
• Connecting neutron star observations to the high density equation of state of quasi-particle model
• Color-flavor locked strange quark matter in a strong magnetic field
• Bulk viscosity of spin-one color superconducting strange quark matter
• A thermodynamically consistent quasi-particle model without density-dependent infinity of the vacuum zero point energy
• Running coupling constant at finite chemical potential and magnetic field from holography
• Bulk viscosity of hot dense Quark matter in PNJL model
• Bulk viscosity of Mixed nucleon-hyperon-quark Matter in Neutron stars
• R-mode instability of strange stars and observations of neutron stars in LMXBs
• Radiative viscosity of neutron stars
• Non-leptonic weak processes in spin-one color superconducting quark matter
• Thermal Evolution of Strange Stars
• The extension of radiative viscosity to superfluid matter