{ "id": "1604.00534", "version": "v1", "published": "2016-04-02T17:28:33.000Z", "updated": "2016-04-02T17:28:33.000Z", "title": "A Green's function approach to the Casimir effect on topological insulators with planar symmetry", "authors": [ "A. Martín-Ruiz", "M. Cambiaso", "L. F. Urrutia" ], "comment": "6 pages, 3 figures, latex epl.sty, accepted for publication in EPL", "categories": [ "cond-mat.mes-hall", "hep-th" ], "abstract": "We investigate the Casimir stress on a topological insulator (TI) between two metallic plates. The TI is assumed to be joined to one of the plates and its surface in front of the other is covered by a thin magnetic layer, which turns the TI into a full insulator. We also analyze the limit where one of the plates is sent to infinity yielding the Casimir stress between a conducting plate and a TI. To this end we employ a local approach in terms of the stress-energy tensor of the system, its vacuum expectation value being subsequently evaluated in terms of the appropriate Green's function. Finally, the construction of the renormalised vacuum stress-energy tensor in the region between the plates yields the Casimir stress. Numerical results are also presented.", "revisions": [ { "version": "v1", "updated": "2016-04-02T17:28:33.000Z" } ], "analyses": { "keywords": [ "greens function approach", "topological insulator", "casimir effect", "planar symmetry", "casimir stress" ], "publication": { "doi": "10.1209/0295-5075/113/60005" }, "note": { "typesetting": "LaTeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1441234 } } }