{ "id": "1010.5897", "version": "v4", "published": "2010-10-28T09:08:27.000Z", "updated": "2011-05-07T12:34:44.000Z", "title": "Landau-Zener-Stückelberg Interference of Microwave Dressed States of a Superconducting Phase Qubit", "authors": [ "Guozhu Sun", "Xueda Wen", "Bo Mao", "Yang Yu", "Jian Chen", "Weiwei Xu", "Lin Kang", "Peiheng Wu", "Siyuan Han" ], "comment": "6 pages, 3 figures To appear in Physical Review B(R)", "doi": "10.1103/PhysRevB.83.180507", "categories": [ "cond-mat.mes-hall", "cond-mat.supr-con", "physics.atom-ph", "quant-ph" ], "abstract": "We present the first observation of Landau-Zener-St\\\"{u}ckelberg (LZS) interference of the dressed states arising from an artificial atom, a superconducting phase qubit, interacting with a microwave field. The dependence of LZS interference fringes on various external parameters and the initial state of the qubit agrees quantitatively very well with the theoretical prediction. Such LZS interferometry between the dressed states enables us to control the quantum states of a tetrapartite solid-state system with ease, demonstrating the feasibility of implementing efficient multipartite quantum logic gates with this unique approach.", "revisions": [ { "version": "v4", "updated": "2011-05-07T12:34:44.000Z" } ], "analyses": { "subjects": [ "74.50.+r", "03.67.Lx", "42.50.Ct", "85.25.Cp" ], "keywords": [ "superconducting phase qubit", "microwave dressed states", "landau-zener-stückelberg interference", "efficient multipartite quantum logic gates", "implementing efficient multipartite quantum logic" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2011, "month": "May", "volume": 83, "number": 18, "pages": 180507 }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011PhRvB..83r0507S" } } }