Corner-Space Renormalization Method for Driven-Dissipative Two-Dimensional Correlated Systems

Physical Review Letters
S FinazziC Ciuti

Abstract

We present a theoretical method to study driven-dissipative correlated quantum systems on lattices with two spatial dimensions (2D). The steady-state density matrix of the lattice is obtained by solving the master equation in a corner of the Hilbert space. The states spanning the corner space are determined through an iterative procedure, using eigenvectors of the density matrix of smaller lattice systems, merging in real space two lattices at each iteration and selecting M pairs of states by maximizing their joint probability. The accuracy of the results is then improved by increasing the dimension M of the corner space until convergence is reached. We demonstrate the efficiency of such an approach by applying it to the driven-dissipative 2D Bose-Hubbard model, describing lattices of coupled cavities with quantum optical nonlinearities.

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Citations

Apr 6, 2019·Physical Review Letters·Riccardo RotaVincenzo Savona
Jul 28, 2019·Physical Review Letters·Alexandra Nagy, Vincenzo Savona
Jul 22, 2017·Physical Review Letters·Adil A GangatYing-Jer Kao
Jul 28, 2019·Physical Review Letters·Filippo VicentiniCristiano Ciuti
Nov 5, 2016·Reports on Progress in Physics·Changsuk Noh, Dimitris G Angelakis
Jul 28, 2019·Physical Review Letters·Michael J Hartmann, Giuseppe Carleo
Aug 3, 2016·Reports on Progress in Physics·L M SiebererS Diehl
May 8, 2021·Physical Review Letters·Dong YuanDong-Ling Deng

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