Robust Distant Entanglement Generation Using Coherent Multiphoton Scattering

Ching-Kit Chan and L. J. Sham
Phys. Rev. Lett. 110, 070501 – Published 11 February 2013
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We describe a protocol to entangle two qubits at a distance by using resonance fluorescence. The scheme makes use of the postselection of large and distinguishable fluorescence signals corresponding to entangled and unentangled qubit states and has the merits of both high success probability and high entanglement fidelity owing to the multiphoton nature. Our result shows that the entanglement generation is robust against photon fluctuations in the fluorescence signals for a wide range of driving fields. We also demonstrate that this new protocol has an average entanglement duration within the decoherence time of corresponding qubit systems, based on current experimental photon efficiency.

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  • Received 19 March 2012


© 2013 American Physical Society

Authors & Affiliations

Ching-Kit Chan and L. J. Sham

  • Department of Physics, Center for Advanced Nanoscience, University of California San Diego, La Jolla, California 92093-0319, USA

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Vol. 110, Iss. 7 — 15 February 2013

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