Near-deterministic efficient all-optical quantum computation

We propose a flexible scheme to prepare various kinds of useful entangled coherent states using weak cross-Kerr nonlinearities and strong laser fields. We then show that, with such entangled states as off-line resources, near-deterministic quantum gates needed for coherent-state-based quantum comput...

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Published in:Physics letters. A 2011-01, Vol.375 (3), p.245-250
Main Authors: An, Nguyen Ba, Kim, Kisik, Kim, Jaewan
Format: Article
Language:English
Subjects:
Coherence
Coherent state qubits
Computation
Entangled coherent states
Entangled states
Gates
Lasers
Nonlinearity
Quantum gates
Solid state physics
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description We propose a flexible scheme to prepare various kinds of useful entangled coherent states using weak cross-Kerr nonlinearities and strong laser fields. We then show that, with such entangled states as off-line resources, near-deterministic quantum gates needed for coherent-state-based quantum computation can be efficiently implemented by means of in-line linear-optics elements.
doi_str_mv 10.1016/j.physleta.2010.11.034
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source ScienceDirect Freedom Collection
subjects Coherence
Coherent state qubits
Computation
Entangled coherent states
Entangled states
Gates
Lasers
Nonlinearity
Quantum gates
Solid state physics
title Near-deterministic efficient all-optical quantum computation
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