Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects

Q 30.2: Poster

Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais

Interfacing Superconducting Qubits and Single Optical Photons — •Susanne Blum1, Christopher O'Brien2, Nikolai Lauk2, Giovanna Morigi1, and Michael Fleischhauer21Universität des Saarlandes, Saarbrücken, Germany — 2Technische Universität Kaiserslautern, Kaiserslautern, Germany

A proposal is presented which allows for interfacing single optical photons and superconducting qubits which have transition frequencies in the microwave regime. The idea is based on using either an atomic ensemble or a solid state quantum memory for storing an optical photon via a two-photon transition in a collective spin excitation. The spin excitation ca also be accessed directly by a microwave field. This transition is used to couple the excitation to a microwave resonator, which mediates the interaction of the collective spin state with the microwave qubit transition; completing the transfer from optical photon to microwave frequency qubit. The reverse process is also analyzed. The efficiency of different methods for transferring the excitation is discussed in relation to the specific realizations of the medium (atomic ensemble, NV-centers, and rare-earth doped crystals).

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