{ "id": "1310.7819", "version": "v2", "published": "2013-10-29T14:43:12.000Z", "updated": "2014-05-08T23:10:19.000Z", "title": "Quantum limit for nuclear spin polarization in semiconductor quantum dots", "authors": [ "Julia Hildmann", "Eleftheria Kavousanaki", "Guido Burkard", "Hugo Ribeiro" ], "comment": "11 pages, 7 figures", "journal": "Phys Rev B. 89, 205302 (2014)", "doi": "10.1103/PhysRevB.89.205302", "categories": [ "cond-mat.mes-hall" ], "abstract": "A recent experiment [E. A. Chekhovich et al., Phys. Rev. Lett. 104, 066804 (2010)] has demonstrated that high nuclear spin polarization can be achieved in self-assembled quantum dots by exploiting an optically forbidden transition between a heavy hole and a trion state. However, a fully polarized state is not achieved as expected from a classical rate equation. Here, we theoretically investigate this problem with the help of a quantum master equation and we demonstrate that a fully polarized state cannot be achieved due to formation of a nuclear dark state. Moreover, we show that the maximal degree of polarization depends on structural properties of the quantum dot.", "revisions": [ { "version": "v2", "updated": "2014-05-08T23:10:19.000Z" } ], "analyses": { "subjects": [ "73.21.La", "71.70.Jp", "75.75.-c" ], "keywords": [ "semiconductor quantum dots", "quantum limit", "high nuclear spin polarization", "fully polarized state", "nuclear dark state" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2014, "month": "May", "volume": 89, "number": 20, "pages": 205302 }, "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvB..89t5302H" } } }