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arXiv · 1003.2402

Controllable Gaussian-qubit interface for extremal quantum state engineering

G. Adesso·S. Campbell·F. Illuminati·M. Paternostro
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Abstract

We study state engineering through bilinear interactions between two remote qubits and two-mode Gaussian light fields. The attainable two-qubit states span the entire physically allowed region in the entanglement-versus-global-purity plane. Two-mode Gaussian states with maximal entanglement at fixed global and marginal entropies produce maximally entangled two-qubit states in the corresponding entropic diagram. We show that a small set of parameters characterizing extremally entangled two-mode Gaussian states is sufficient to control the engineering of extremally entangled two-qubit states, which can be realized in realistic matter-light scenarios.

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G. Adesso, S. Campbell, F. Illuminati, M. Paternostro. 2010-07-02. Controllable Gaussian-qubit interface for extremal quantum state engineering. https://doi.org/10.1103/physrevlett.104.240501

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