Abstract
In this Chapter methods for generation of squeezed and entangled states of atomic ensembles are described along with the protocols for quantum state exchange between light and atomic samples. Realization of these protocols provides the means to store/retrieve quantum information transmitted by light in/from atomic samples, which can be used for processing of this information. Polarization variables (Stokes parameters) of a multi-photon light pulse and spin components of a multi-atom atomic ensemble are the continuous variables employed in these protocols. Two different methods for a quantum state exchange are analyzed: (a) mapping of non-classical states of light onto atomic spins via complete absorption of resonant light, (b) teleportation-like transfer of a quantum state via a QND-type interaction between off-resonant light and atoms.
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Kuzmich, A., Polzik, E.S. (2003). Atomic Continuous Variable Processing and Light-Atoms Quantum Interface. In: Braunstein, S.L., Pati, A.K. (eds) Quantum Information with Continuous Variables. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-1258-9_18
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DOI: https://doi.org/10.1007/978-94-015-1258-9_18
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