Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2007-02-28
Phys. Rev. Lett. 98, 240501 (2007)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 2 figures; figures updated
Scientific paper
10.1103/PhysRevLett.98.240501
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.
Flindt Christian
Lukin Mikhail D.
Sorensen Anders Sondberg
Taylor Jacob M.
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