Estimation of transport coefficients of dense hadronic and quark matter

Abstract

We have attempted to visualize transport coefficients like shear viscosity and electrical conductivity with respect to density of neutron star environment, whose core may expect a hadron-quark phase transition due to acquiring much higher density than nuclear saturation density. By making sandwich between MIT bag model for quark phase and two different effective hadronic models for hadronic phase, we have estimated the transport coefficients of two phases. During sketching of the transport coefficients, we have discussed their detailed density profile of phase-space part and relaxation time part. By calculating shear viscosity to density ratio, we have also explored the nearly perfect fluid domain along the density axis of hadron-quark phase diagram.