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27 April 2024

» arxiv » 0803.0183

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Optimal control of atom transport for quantum gates in optical lattices
G. De Chiara ; T. Calarco ; M. Anderlini ; S. Montangero ; P. J. Lee ; B. L. Brown ; W. D. Phillips ; J. V. Porto ;
Date:	3 Mar 2008
Abstract:	By means of optimal control techniques we model and optimize the manipulation of the external quantum state (center-of-mass motion) of atoms trapped in adjustable optical potentials. We consider in detail the cases of both non interacting and interacting atoms moving between neighboring sites in a lattice of a double-well optical potentials. Such a lattice can perform interaction-mediated entanglement of atom pairs and can realize two-qubit quantum gates. The optimized control sequences for the optical potential allow transport faster and with significantly larger fidelity than is possible with processes based on adiabatic transport.
Source:	arXiv, 0803.0183
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