{ "id": "1708.01052", "version": "v1", "published": "2017-08-03T08:44:43.000Z", "updated": "2017-08-03T08:44:43.000Z", "title": "Resonant-tunneling in discrete-time quantum walk", "authors": [ "Kaname Matsue", "Leo Matsuoka", "Osamu Ogurisu", "Etsuo Segawa" ], "comment": "14 pages, 2 figures", "categories": [ "quant-ph", "math-ph", "math.MP" ], "abstract": "We show that discrete-time quantum walks on the line, $\\mathbb{Z}$, behave as \"the quantum tunneling\". In particular, quantum walkers can tunnel through a double-well with the transmission probability $1$ under a mild condition. This is a property of quantum walks which cannot be seen on classical random walks, and is different from both linear spreadings and localizations.", "revisions": [ { "version": "v1", "updated": "2017-08-03T08:44:43.000Z" } ], "analyses": { "keywords": [ "discrete-time quantum walk", "transmission probability", "linear spreadings", "quantum walkers", "classical random walks" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }