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Q: Fachverband Quantenoptik und Photonik

Q 18: Quantum Gases (Bosons) II

Q 18.4: Vortrag

Montag, 5. März 2018, 14:45–15:00, K 2.020

Generation of robust entangled states in a non-Hermitian periodically driven two-band Bose-Hubbard system — Carlos A. Parra-Murillo¹, Manuel H. Muñoz-Arias¹, •Javier Madroñero¹, and Sandro Wimberger² — ¹Physics Department, Universidad del Valle, Cali, Colombia — ²Dipartimento di Scienze Matematiche, Fisiche e Informatiche Università di Parma, Italy

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.