Abstract:Real-time evolution of replicas of classical field is proposed as an approximate simulator of real-time quantum field dynamics at finite temperatures. We consider N classical field configurations, (φ τ x , π τ x )(τ = 0, 1, • • • N − 1), dubbed as replicas, which interact with each other via the τ -derivative terms and evolve with the classical equation of motion. The partition function of replicas is found to be proportional to that of quantum field in the imaginary time formalism. Since the replica index can… Show more
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