Bulk viscosity due to kaons in color-flavor-locked quark matter
Bulk viscosity due to kaons in color-flavor-locked quark matter
We calculate the bulk viscosity of color-superconducting quark matter in the color-flavor-locked (CFL) phase. We assume that the lightest bosons are the superfluid mode $H$ and the kaons ${K}^{0}$ and ${K}^{+}$, and that there is no kaon condensate. We calculate the rate of strangeness-equilibrating processes that convert kaons into superfluid …