{ "id": "1712.01513", "version": "v1", "published": "2017-12-05T07:52:41.000Z", "updated": "2017-12-05T07:52:41.000Z", "title": "Circular dichroism of chiral Majoranas", "authors": [ "Javier Osca", "Llorenç Serra" ], "comment": "8 pages, 8 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "Majorana states in condensed matter devices may be of a localized nature, such as in hybrid semiconductor/superconductor nanowires, or chirally propagating along the edges such as in hybrid 2D quantum-anomalous-Hall/superconductor structures. We calculate the circular dichroism due to chiral Majorana states in a hybrid structure made of a quantum-anomalous-Hall-insulator and a superconductor. The optical absorption of chiral Majoranas is characterized by equally spaced absorption peaks of both positive and negative dichroism. In the limit of a very long structure (a 2D ribbon) peaks of a single sign are favored. Circular-dichroism spectroscopy of chiral Majoranas is suggested as a relevant probe for these peculiar states of topological matter.", "revisions": [ { "version": "v1", "updated": "2017-12-05T07:52:41.000Z" } ], "analyses": { "keywords": [ "circular dichroism", "hybrid 2d quantum-anomalous-hall/superconductor structures", "chiral majorana states", "hybrid semiconductor/superconductor nanowires", "equally spaced absorption peaks" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }