{ "id": "1406.4049", "version": "v2", "published": "2014-06-16T15:35:44.000Z", "updated": "2014-08-18T09:38:42.000Z", "title": "Quantum interference in the absorption and emission of single photons by a single ion", "authors": [ "Michael Schug", "Christoph Kurz", "Pascal Eich", "Jan Huwer", "Philipp Müller", "Jürgen Eschner" ], "comment": "8 pages, 10 figures", "journal": "Phys. Rev. A 90, 023829 (2014)", "doi": "10.1103/PhysRevA.90.023829", "categories": [ "quant-ph", "physics.atom-ph" ], "abstract": "We investigate quantum beats in the arrival-time distribution of single photons from a single trapped $^{40}$Ca$^+$ ion, revealing their fundamentally different physical origins in two distinct experimental situations: In a $\\Lambda$-type level scheme the interference of two 854-nm absorption amplitudes suppresses and enhances the emission process of Raman-scattered 393-nm photons; in a V-type level scheme the interference of two 393-nm emission amplitudes causes a rotation of their dipole emission pattern resulting in a temporal modulation of the detected photons. For both cases we demonstrate coherent control over the quantum-beat phase through the phases of the atomic and photonic input states, which also allows controlled adjustment of the total photon detection efficiency.", "revisions": [ { "version": "v2", "updated": "2014-08-18T09:38:42.000Z" } ], "analyses": { "subjects": [ "42.50.Md", "42.50.Gy", "42.50.Ct", "42.50.Dv" ], "keywords": [ "single photons", "single ion", "quantum interference", "total photon detection efficiency", "photonic input states" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review A", "year": 2014, "month": "Aug", "volume": 90, "number": 2, "pages": "023829" }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvA..90b3829S" } } }