{ "id": "1407.6562", "version": "v1", "published": "2014-07-24T13:08:27.000Z", "updated": "2014-07-24T13:08:27.000Z", "title": "From Dicke to Anderson: Interplay of Superradiance and Disorder", "authors": [ "Alberto Biella" ], "comment": "Master Thesis", "categories": [ "cond-mat.mes-hall", "cond-mat.dis-nn", "quant-ph" ], "abstract": "Using a non-Hermitian Hamiltonian approach to open systems, we study the interplay of disorder and superradiance in a one- and three-dimensional Anderson model. Analyzing the complex eigenvalues of the non-Hermitian Hamiltonian, a transition to a superradiant regime is shown to occur. As an effect of openness the structure of eigenstates undergoes a strong change in the superradiant regime: we show that the sensitivity to disorder of the superradiant and the subradiant subspaces is very different; superradiant states remain delocalized as disorder increases, while subradiant states are sensitive to the degree of disorder.", "revisions": [ { "version": "v1", "updated": "2014-07-24T13:08:27.000Z" } ], "analyses": { "keywords": [ "superradiance", "superradiant regime", "three-dimensional anderson model", "non-hermitian hamiltonian approach", "disorder increases" ], "tags": [ "dissertation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1407.6562B" } } }