Thermodynamic Equilibrium of a Wormhole Station

Abstract: We study the thermodynamic equilibrium of matter in a wormhole station' which connects various distinct asymptotic regions of a spacetime. An example of thestation' is a traversable wormhole connecting two distant regions. The temperatures of matter in the station' measured at various asymptotic regions are not necessarily the same. We propose a generalizedtemperature' which characterizes the thermal equilibrium in the spacetime with the station'. We additionally discuss how thermalequilibrium' works for a multiply connected spacetime.