2017/09/30 by Filippo Vicentini, Fabrizio Minganti, Riccardo Rota +2
Physics and Astronomy · #quant-ph #cond-mat.other
paper · pdf · doi:10.1103/physreva.97.013853
published as Phys. Rev. A 97, 013853 (2018) · 7 pages, 7 figures, 50 references
arxiv created 2018/01/23 · arxiv updated 2018/02/07
We theoretically explore the dynamical properties of a first-order dissipative phase transition in coherently driven Bose-Hubbard systems, describing, e.g., lattices of coupled nonlinear optical cavities. Via stochastic trajectory calculations based on the truncated Wigner approximation, we investigate the dynamical behavior as a function of system size for 1D and 2D square lattices in the regime where mean-field theory predicts nonlinear bistability. We show that a critical slowing down emerges for increasing number of sites in 2D square lattices, while it is absent in 1D arrays. We characterize the peculiar properties of the collective phases in the critical region.