Graph-state preparation and quantum computation with global addressing of optical lattices

We present a way to manipulate ultracold atoms where four atomic levels are trapped by appropriately tuned optical lattices. When employed to perform quantum computation via global control, this unique structure dramatically reduces the number of steps involved in the control procedures, either for...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2006-02, Vol.73 (2), Article 022310
Main Authors: Kay, Alastair, Pachos, Jiannis K., Adams, Charles S.
Format: Article
Language:English
Subjects:
ATOMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
LATTICE FIELD THEORY
OPTICS
QUANTUM COMPUTERS
QUANTUM DECOHERENCE
QUANTUM MECHANICS
TRAPPING
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Summary:We present a way to manipulate ultracold atoms where four atomic levels are trapped by appropriately tuned optical lattices. When employed to perform quantum computation via global control, this unique structure dramatically reduces the number of steps involved in the control procedures, either for the standard, network, model, or for one-way quantum computation. The use of a far-blue-detuned lattice and a magnetically insensitive computational basis makes the scheme robust against decoherence. The present scheme is a promising candidate for experimental implementation of quantum computation and for graph-state preparation in one, two, or three spatial dimensions.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.73.022310