A single ion interacting with single spontaneous parametric down-conversion photons

Author

Rohde, F. ; Piro, N. ; Schuck, C. ; Almendros, M. ; Huwer, J. ; Hennrich, M. ; Haase, A. ; Mitchell, M.W. ; Dubin, F. ; Eschner, J.

Author_Institution

ICFO-Inst. de Cienc. Fotoniques, Castelldefels, Spain

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

The paper studies the second kind of entanglement distribution scheme. Entangled photon pairs are generated using the type-II spontaneous parametric down-conversion process (SPDC) in a PPKTP crystal. The source is tunable to both D-P transitions at 850 and 854 nm in ⁴⁰Ca⁺ ions. The photon pairs are split by a polarizing beam splitter and one photon mode is coupled into a filtering line, consisting of two cascaded Fabry-Perot cavities, which are resonant with the atomic transition ( deltanu = 22 MHz). The second photon beam is focused onto a single trapped ⁴⁰Ca⁺ ion through a high numerical aperture (0.4 NA) lens.

Keywords

atom-photon collisions; calcium; particle traps; positive ions; potassium compounds; quantum entanglement; quantum optics; radiation pressure; two-photon processes; Ca; D-P transitions; Fabry-Perot cavities; KTP; PPKTP crystal; SPDC; atomic transition; entanglement distribution; ion trap; polarizing beam splitter; single ion interaction; spontaneous parametric down-conversion; wavelength 850 nm; wavelength 854 nm; Absorption; Atomic measurements; Filters; Fluorescence; Optical coupling; Photonic crystals; Polarization; Quantum entanglement; Resonance; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5192788

Filename

5192788