Quantum computations with atoms in optical lattices: Marker qubits and molecular interactions

We develop a scheme for quantum computation with neutral atoms, based on the concept of 'marker' atoms, i.e., auxiliary atoms that can be efficiently transported in state-independent periodic external traps to operate quantum gates between physically distant qubits. This allows for relaxin...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2004-07, Vol.70 (1), Article 012306
Main Authors: Calarco, T., Dorner, U., Julienne, P. S., Williams, C. J., Zoller, P.
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
ATOMS
BASIC INTERACTIONS
GATING CIRCUITS
INFORMATION THEORY
LASER RADIATION
OPTICS
PERIODICITY
POTENTIALS
QUANTUM MECHANICS
RADIATION PRESSURE
TRAPS
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Summary:We develop a scheme for quantum computation with neutral atoms, based on the concept of 'marker' atoms, i.e., auxiliary atoms that can be efficiently transported in state-independent periodic external traps to operate quantum gates between physically distant qubits. This allows for relaxing a number of experimental constraints for quantum computation with neutral atoms in microscopic potential, including single-atom laser addressability. We discuss the advantages of this approach in a concrete physical scenario involving molecular interactions.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.70.012306