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Title: A single-interaction step implementation of a quantum search in coupled micro-cavities
Authors: Kyoseva, E.S.
Angelakis, D.G.
Kwek, L.C. 
Issue Date: 2010
Citation: Kyoseva, E.S., Angelakis, D.G., Kwek, L.C. (2010). A single-interaction step implementation of a quantum search in coupled micro-cavities. EPL 89 (2) : -. ScholarBank@NUS Repository.
Abstract: We present a method for realizing efficiently Grover's search algorithm in an array of coupled cavities doped with three-level atoms. We show that by encoding information in the lowest two ground states of the dopants and through the application of appropriately tuned global laser fields, the reflection operator needed for the quantum search algorithm can be realized in a single physical operation. Thus, the time steps in which Grover's search can be implemented become equal to the mathematical steps O(N), where N is the size of the register. We study the robustness of the implementation against errors due to photon loss and fluctuations in the cavity frequencies and atom-photon coupling constants. Copyright © 2010 EPLA.
Source Title: EPL
ISSN: 02955075
DOI: 10.1209/0295-5075/89/20005
Appears in Collections:Staff Publications

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