Transition between vacuum and finite-density states in the infinite-dimensional Bose-Hubbard model with spatially inhomogeneous dissipation
Year: 2021
Type: preprint
Abstract: We analyze dynamics of the infinite-dimensional Bose-Hubbard model with spatially inhomogeneous dissipation in the hardcore boson limit by solving the Lindblad master equation with use of the Gutzwiller variational method. We consider dissipation processes that correspond to inelastic light scattering in the case of Bose gases in optical lattices. We assume that the dissipation is applied to a half of lattice sites in a spatially alternating manner. We focus on steady states at which the system arrives after long-time evolution. We find that when the average particle density is varied, the steady state exhibits a transition between a state in which the sites without dissipation are vacuum and that containing a finite number of particles at those sites. We associate the transition with the tendency of the sites with dissipation towards a local state at infinite temperature.
Source: arXiv (Cornell University)
DOI: 10.1093/ptep/ptac011
Authors: Asai, Shiono, Goto, Shimpei, Danshita, Ippei
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: Experimental study on open quantum many-body systems using strongly correlated cold atoms, Numerical simulations of strongly entangled states: Sampling by matrix product states, G407425416, Exploration of new quantum condensed phase by exploiting orbital and spin degrees of freedom of ultracold atomic gases in an optical lattice
OpenAlex ID: W4206401151