Gaussian trajectory approach to dissipative phase transitions: The case of quadratically driven photonic lattices

Abstract

The authors explore the behavior of nonlinear optical lattices in the limit of strong losses by combining the quantum trajectory framework for open quantum systems, with a Gaussian variational ansatz commonly used for closed many body-systems. The paper shows that the photon losses bring the system to the universality class of the thermal Ising model, providing evidence that losses act similarly to temperature.

Topics & Concepts