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arXiv · 1004.1414

CNOT and Bell-state analysis in the weak-coupling cavity QED regime

Cristian Bonato·Florian Haupt·Sumant S. R. Oemrawsingh·Jan Gudat·Dapend Ding·Martin P. van Exter·Dirk Bouwmeester
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Abstract

We propose an interface between the spin of a photon and the spin of an electron confined in a quantum dot embedded in a microcavity operating in the weak coupling regime. This interface, based on spin selective photon reflection from the cavity, can be used to construct a CNOT gate, a multi-photon entangler and a photonic Bell-state analyzer. Finally, we analyze experimental feasibility, concluding that the schemes can be implemented with current technology.

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Cristian Bonato, Florian Haupt, Sumant S. R. Oemrawsingh, Jan Gudat, Dapend Ding, Martin P. van Exter, Dirk Bouwmeester. 2010-04-08. CNOT and Bell-state analysis in the weak-coupling cavity QED regime. https://doi.org/10.1103/physrevlett.104.160503

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