{ "id": "2303.08483", "version": "v1", "published": "2023-03-15T09:37:42.000Z", "updated": "2023-03-15T09:37:42.000Z", "title": "Non-Hermitian skin effect induced by Rashba-Dresselhaus spin-orbit coupling", "authors": [ "Pavel Kokhanchik", "Dmitry Solnyshkov", "Guillaume Malpuech" ], "categories": [ "cond-mat.mes-hall", "cond-mat.quant-gas", "quant-ph" ], "abstract": "1D chains with non-reciprocal tunneling realizing the non-Hermitian skin effect (NHSE) have attracted considerable interest in the last years whereas their experimental realization in real space remains limited to a few examples. In this work, we propose a new generic way of implementing non-reciprocity based on a combination of the Rashba-Dresshlauss spin-orbit coupling, existing for electrons, cold atoms, and photons, and a lifetime imbalance between two spin components. We show that one can realize the Hatano-Nelson model, the non-Hermitian Su-Schrieffer-Heeger model, and even observe the NHSE in a 1D potential well without the need for a lattice. We further demonstrate the practical feasibility of this proposal by considering the specific example of a photonic liquid crystal microcavity. This platform allows one to switch on and off the NHSE by applying an external voltage to the microcavity.", "revisions": [ { "version": "v1", "updated": "2023-03-15T09:37:42.000Z" } ], "analyses": { "keywords": [ "non-hermitian skin effect", "rashba-dresselhaus spin-orbit coupling", "photonic liquid crystal microcavity", "real space remains", "non-hermitian su-schrieffer-heeger model" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }