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arXiv · 1208.1415

Towards quantum state tomography of a single polariton state of an atomic ensemble

S. L. Christensen·J. B. Béguin·H. L. Sørensen·E. Bookjans·D. Oblak·J. H. Müller·J. Appel·E. S. Polzik
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Abstract

We present a proposal and a feasibility study for the creation and quantum state tomography of a single polariton state of an atomic ensemble. The collective non-classical and non-Gaussian state of the ensemble is generated by detection of a single forward scattered photon. The state is subsequently characterized by atomic state tomography performed using strong dispersive light-atoms interaction followed by a homodyne measurement on the transmitted light. The proposal is backed by preliminary experimental results showing projection noise limited sensitivity and a simulation demonstrating the feasibility of the proposed method for detection of a non-classical and non-Gaussian state of the mesoscopic atomic ensemble. This work represents the first attempt of hybrid discrete-continuous variable quantum state processing with atomic ensembles.

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BibTeXRIS

S. L. Christensen, J. B. Béguin, H. L. Sørensen, E. Bookjans, D. Oblak, J. H. Müller, J. Appel, E. S. Polzik. 2012-10-30. Towards quantum state tomography of a single polariton state of an atomic ensemble. https://doi.org/10.1088/1367-2630%2F15%2F1%2F015002

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