{ "id": "1506.09028", "version": "v1", "published": "2015-06-30T10:59:45.000Z", "updated": "2015-06-30T10:59:45.000Z", "title": "Single-electron coherence: finite temperature versus pure dephasing", "authors": [ "Michael Moskalets", "Géraldine Haack" ], "comment": "17 pages, 6 figures, invited contribution to a special issue in Physica E on \"Frontiers in quantum electronic transport\" - in memory of Markus B\\\"uttiker", "categories": [ "cond-mat.mes-hall" ], "abstract": "We analyze a coherent injection of single electrons on top of the Fermi sea in two situations, at finite-temperature and in presence of pure dephasing. Both finite-temperature and pure dephasing change the property of the injected quantum states from pure to mixed. However, we show that the temperature-induced mixedness does not alter the coherence properties of these single-electronic states. In particular two such mixed states exhibit perfect antibunching while colliding at an electronic wave splitter. This is in striking difference with the dephasing-induced mixedness which suppresses antibunching. On the contrary, a single-particle shot noise is suppressed at finite temperatures but is not affected by pure dephasing. This work therefore extends the investigation of the coherence properties of single-electronic states to the case of mixed states and clarifies the difference between different types of mixedness.", "revisions": [ { "version": "v1", "updated": "2015-06-30T10:59:45.000Z" } ], "analyses": { "keywords": [ "finite temperature", "single-electron coherence", "single-electronic states", "coherence properties", "mixed states" ], "publication": { "doi": "10.1016/j.physe.2015.09.002", "journal": "Physica E Low-Dimensional Systems and Nanostructures", "year": 2016, "month": "Jan", "volume": 75, "pages": 358 }, "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016PhyE...75..358M" } } }