{ "id": "1510.00173", "version": "v1", "published": "2015-10-01T10:35:23.000Z", "updated": "2015-10-01T10:35:23.000Z", "title": "Passive stabilization of hole spin qubit using optical Stark effect", "authors": [ "A. J. Ramsay" ], "comment": "5 pages, 3 figs", "categories": [ "cond-mat.mes-hall", "quant-ph" ], "abstract": "The extrinsic dephasing of a hole spin confined to a self-assembled quantum dot is dominated by charge noise acting on an electric-field dependent g-factor. Here we propose the use of the optical Stark effect to reduce the sensitivity of the effective hole Zeeman energy to fluctuations in the local electric-field. Calculations using measured quantum dot parameters are presented, and demonstrate a factor of 10-100 reduction in the extrinsic dephasing. Compared to active stabilization methods, this technique should benefit from reduced experimental complexity.", "revisions": [ { "version": "v1", "updated": "2015-10-01T10:35:23.000Z" } ], "analyses": { "keywords": [ "optical stark effect", "hole spin qubit", "passive stabilization", "electric-field dependent g-factor", "effective hole zeeman energy" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }