We consider an irreducible continuous time Markov chain on a finite state
space and with time periodic jump rates and prove the joint large deviation
principle for the empirical measure and flow and the joint large deviation
principle for the empirical measure and current. By contraction we get the
large deviation principle of three types of entropy production flow. We derive
some Gallavotti-Cohen duality relations and discuss some applications.Comment: 37 pages. corrected versio