6533b7d5fe1ef96bd12652d3

RESEARCH PRODUCT

Generation of robust entangled states in a non-hermitian periodically driven two-band Bose-Hubbard system

Javier MadroñeroSandro WimbergerSandro WimbergerSandro WimbergerManuel H. Muñoz-ariasCarlos A. Parra-murillo

subject

PhysicsStructure (category theory)FOS: Physical sciences02 engineering and technologyDissipation021001 nanoscience & nanotechnology01 natural sciencesHermitian matrixTwo bandRobustness (computer science)Quantum Gases (cond-mat.quant-gas)0103 physical sciencesStatistical physics010306 general physics0210 nano-technologyCondensed Matter - Quantum GasesSubspace topology

description

A many-body Wannier-Stark system coupled to an effective reservoir is studied within a non-Hermitian approach in the presence of a periodic driving. We show how the interplay of dissipation and driving dynamically induces a subspace of states which are very robust against dissipation. We numerically probe the structure of these asymptotic states and their robustness to imperfections in the initial-state preparation and to the size of the system. Moreover, the asymptotic states are found to be strongly entangled making them interesting for further applications.

https://dx.doi.org/10.48550/arxiv.1611.06369