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Q: Fachverband Quantenoptik und Photonik

Q 41: Poster: Quantum Optics and Photonics II

Q 41.22: Poster

Mittwoch, 13. März 2019, 16:15–18:15, S Fobau Physik

Solid State Quantum Memory for Single Photons — •Peter-Maximilian Ney, Luigi Giannelli, Tom Schmit, and Giovanna Morigi — Theoretische Physik, Universität des Saarlandes, 66123 Saarbrücken, Germany

We numerically analyse the dynamics of a single photon propagating in free space and incident on the mirror of an optical cavity, in which a solid state medium is confined. The relevant electronic states of each atom of the medium form a three-level Λ-system: one transition is coupled to the quantized field of the cavity via Jaynes-Cummings interaction, while the other transition is driven by a classical control field Ω(t) [1] with the intent of storing the single photon in a collective excitation of the atoms. Our purpose is to study the effect of inhomogenous broadening of the atomic levels. Furthermore we compare the efficiencies when two different types of optical cavities are used: a linear cavity (described by a single mode) and a ring cavity (described by two counter-propagating modes). We consider dissipative processes and inhomogenous broadening of the excited and metastable states of the atom, such as in [2].

[1] M. Fleischhauer, et al., Opt. Commun. 179, 395 (2000).

[2] Susanne Blum, et al., Phys. Rev. A 91, 033834 (2015).