title: Single ion coupled to an optical fiber cavity.
abstract: We present the realization of a combined trapped-ion and optical cavity system, in which a single Yb(+) ion is confined by a micron-scale ion trap inside a 230 μm-long optical fiber cavity. We characterize the spatial ion-cavity coupling and measure the ion-cavity coupling strength using a cavity-stimulated Λ transition. Owing to the small mode volume of the fiber resonator, the coherent coupling strength between the ion and a single photon exceeds the natural decay rate of the dipole moment. This system can be integrated into ion-photon quantum networks and is a step towards cavity quantum electrodynamics based quantum information processing with trapped ions.
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
authors.forename: Matthias
authors.initials: M
authors.lastname: Steiner
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
authors.forename: Hendrik M
authors.initials: HM
authors.lastname: Meyer
authors.affiliation: Laboratoire Kastler-Brossel, ENS/UPMC-Paris 6/CNRS, F-75005 Paris, France and Menlo Systems GmbH, 82152 Martinsried, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Deutsch
authors.affiliation: Laboratoire Kastler-Brossel, ENS/UPMC-Paris 6/CNRS, F-75005 Paris, France.
authors.forename: Jakob
authors.initials: J
authors.lastname: Reichel
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
authors.forename: Michael
authors.initials: M
authors.lastname: Köhl
mesh_terms: D005336:Fiber Optic Technology / Q000379:methods*; D007477:Ions / Q000737:chemistry; D017785:Photons; D011789:Quantum Theory; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D007477:Ions; D015018:Ytterbium