Geometric quantum gate for trapped ions based on optical dipole forces induced by Gaussian laser beams

We propose an implementation of quantum logic gates via internal state dependent displacements of ions in a linear Paul trap caused by optical dipole forces. Based on a general quantum analysis of the system dynamics we consider specific implementations with alkaline-earth-metal ions. For experiment...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2004-11, Vol.70 (5), Article 052327
Main Authors: Staanum, Peter, Drewsen, Michael, Mølmer, Klaus
Format: Article
Language:English
Subjects:
ALKALINE EARTH METALS
ATOMIC AND MOLECULAR PHYSICS
CATIONS
DIPOLES
GATING CIRCUITS
IMPLEMENTATION
LASER RADIATION
QUANTUM MECHANICS
TRAPPING
TRAPS
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Summary:We propose an implementation of quantum logic gates via internal state dependent displacements of ions in a linear Paul trap caused by optical dipole forces. Based on a general quantum analysis of the system dynamics we consider specific implementations with alkaline-earth-metal ions. For experimentally realistic parameters gate infidelities as low as 10{sup -4} can be obtained.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.70.052327