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Quantum processing photonic states in optical lattices



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Muschik, Christine A. and Vega, Inés de and Porras Torres, Diego and Cirac, J. Ignacio (2008) Quantum processing photonic states in optical lattices. Physical review letters, 100 (6). ISSN 0031-9007

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Official URL: http://doi.org/10.1103/PhysRevLett.100.063601


The mapping of photonic states to collective excitations of atomic ensembles is a powerful tool which finds a useful application in the realization of quantum memories and quantum repeaters. In this work we show that cold atoms in optical lattices can be used to perform an entangling unitary operation on the transferred atomic excitations. After the release of the quantum atomic state, our protocol results in a deterministic two qubit gate for photons. The proposed scheme is feasible with current experimental techniques and robust against the dominant sources of noise.

Item Type:Article
Additional Information:

© 2008 The American Physical Society.
We thank Eugene Polzik for discussions and acknowledge support from the Elite Network of Bavaria (ENB) project QCCC, the EU projects SCALA and COVAQUIAL, the DFG-Forschungsgruppe No. 635, and Ministerio de Educacion y Ciencia No. EX-2006-0295.

Uncontrolled Keywords:Controlled collisions; Atomic ensembles; Linear optics; Entanglement; Computation; Gates; Logic
Subjects:Sciences > Physics
ID Code:47502
Deposited On:18 May 2018 08:32
Last Modified:18 May 2018 08:32

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