出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A method to measure the transport coefficients on the lattice is proposed. We introduce a spatiallyinhomogeneous
momentum source to the Hamiltonian in order to generate a non-equilibrium
but steady hydrodynamic flow. Once such hydrodynamic flow is created with appropriate spatial
geometries, the transport coefficients are determined from expectation values of the energymomentum
tensor. A Monte Carlo simulation for SU(3) gauge theory is performed to measure
the shear viscosity with this method. The effect of the momentum source is taken into account
with the Taylor expansion up to the third order. Our numerical result shows, however, that the
hydrodynamic flow is not generated up to this order in this formalism.
