{ "id": "1609.03749", "version": "v1", "published": "2016-09-13T10:11:22.000Z", "updated": "2016-09-13T10:11:22.000Z", "title": "Bi-stability in single impurity Anderson model with strong electron-phonon interaction (polaron regime)", "authors": [ "Amir Eskandari-asl" ], "journal": "Physica B Condensed Matter 497 (2016) 11-13", "doi": "10.1016/j.physb.2016.06.004", "categories": [ "cond-mat.mes-hall" ], "abstract": "We consider a single impurity Anderson model (SIAM) in which the quantum dot(QD) is strongly coupled to a phonon bath in polaron regime. This coupling results in an effective e-e attraction. By computing the self energies using a current conserving approximation which is up to second order in this effective attraction, we show that if the interaction is strong enough, in non particle-hole(PH) symmetric case, the system would be bi-stable and we have hysteresis loop in the I-V characteristic. Moreover, the system shows negative differential conductance in some bias voltage intervals.", "revisions": [ { "version": "v1", "updated": "2016-09-13T10:11:22.000Z" } ], "analyses": { "keywords": [ "single impurity anderson model", "strong electron-phonon interaction", "polaron regime", "bi-stability", "bias voltage intervals" ], "tags": [ "journal article" ], "publication": { "publisher": "Elsevier" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }