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Spin-Photon Entangling Diode

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arxiv cond-mat/0702688 v2 pith:FFDQVOE5 submitted 2007-02-28 cond-mat.mes-hall quant-ph

classification cond-mat.mes-hallquant-ph
keywords diodespin-photondeviceelectronentangledentanglementquantumspins
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose a semiconductor device that can electrically generate entangled electron spin-photon states, providing a building block for entanglement of distant spins. The device consists of a p-i-n diode structure that incorporates a coupled double quantum dot. We show that electronic control of the diode bias and local gating allow for the generation of single photons that are entangled with a robust quantum memory based on the electron spins. Practical performance of this approach to controlled spin-photon entanglement is analyzed.

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