{ "id": "1007.4637", "version": "v2", "published": "2010-07-27T08:24:30.000Z", "updated": "2010-10-25T13:28:37.000Z", "title": "Simulating and Detecting the Quantum Spin Hall Effect in Kagomé Optical Lattice", "authors": [ "Guocai Liu", "Shi-Liang Zhu", "Shaojian Jiang", "Fadi Sun", "W. M. Liu" ], "comment": "8 pages, 6 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "We propose a model which includes a nearest-neighbor intrinsic spin-orbit coupling and a dimer Hamiltonian in the Kagom\\'{e} lattice and promises to host the transition from the quantum spin Hall insulator to the normal insulator. In addition, we design an experimental scheme to simulate and detect this transition in the ultracold atom system. The lattice intrinsic spin-orbit coupling is generated via the laser-induced-gauge-field method. Furthermore, we establish the connection between the spin Chern number and the spin-atomic density which enables us to detect the topological quantum spin Hall insulator directly by the standard density-profile technique used in the atomic systems.", "revisions": [ { "version": "v2", "updated": "2010-10-25T13:28:37.000Z" } ], "analyses": { "subjects": [ "03.75.Hh", "05.30.Fk", "73.43.-f", "71.70.Ej" ], "keywords": [ "quantum spin hall effect", "optical lattice", "intrinsic spin-orbit coupling", "topological quantum spin hall insulator", "nearest-neighbor intrinsic spin-orbit" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevA.82.053605", "journal": "Physical Review A", "year": 2010, "month": "Nov", "volume": 82, "number": 5, "pages": "053605" }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010PhRvA..82e3605L" } } }