Düsseldorf 2007 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 61: Poster Quanteneffekte

Q 61.2: Poster

Thursday, March 22, 2007, 16:30–18:30, Poster C

Adiabatic frequency conversion of quantum optical information in atomic vapor — •Frank Vewinger^1,2, Eden Figueroa², Jürgen Appel², and Alexander Lvovsky² — ¹Institut für angewandte Physik, Universität Bonn — ²Institute for Quantum Information Science, University of Calgary, Canada

We experimentally demonstrate a quantum communication protocol that enables frequency conversion and routing of quantum optical information in an adiabatic and thus robust way. The protocol, termed ”Raman adiabatic trabsfer of optical states (RATOS)” [1] is based on electromagnetically induced transparency in systems with multiple excited levels: transfer and/or distribution of optical states between different signal modes is implemented by adiabatically changing the control fields. The proof-of-principle experiment is performed using the hyperfine levels of the rubidium D1 line [2].
J. Appel et al., Phys. Rev. A 73, 013804 (2006)
F. Vewinger et al, quant-ph/0611181 (2006)