{ "id": "1403.8047", "version": "v1", "published": "2014-03-31T15:25:34.000Z", "updated": "2014-03-31T15:25:34.000Z", "title": "Real time decoherence of Landau and Levitov quasi-particles in quantum Hall edge channels", "authors": [ "D. Ferraro", "B. Roussel", "C. Cabart", "E. Thibierge", "G. Fève", "C. Grenier", "P. Degiovanni" ], "comment": "14 pages, 8 figures", "categories": [ "cond-mat.mes-hall", "quant-ph" ], "abstract": "Quantum Hall edge channels at integer filling factor provide a unique test-bench to understand decoherence and relaxation of single electronic excitations in a ballistic quantum conductor. In this Letter, we obtain a full visualization of the decoherence scenario of energy (Landau) and time (Levitov) resolved single electron excitations at filling factor $\\nu=2$. We show that the Landau excitation exhibits a fast relaxation followed by spin-charge separation whereas the Levitov excitation only experiences spin-charge separation. We finally suggest to use Hong-Ou-Mandel type experiments to probe specific signatures of these different scenarios.", "revisions": [ { "version": "v1", "updated": "2014-03-31T15:25:34.000Z" } ], "analyses": { "subjects": [ "71.10.Pm", "73.23.-b", "73.43.-f" ], "keywords": [ "quantum hall edge channels", "real time decoherence", "levitov quasi-particles", "spin-charge separation", "single electronic excitations" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevLett.113.166403", "journal": "Physical Review Letters", "year": 2014, "month": "Oct", "volume": 113, "number": 16, "pages": 166403 }, "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1288125, "adsabs": "2014PhRvL.113p6403F" } } }