2008/03/31 by G. De Chiara, Gabriele De Chiara, Tommaso Calarco +9 · 1 citation
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Quantum optics and atomic interactions #cond-mat.other #quant-ph
paper · pdf · doi:10.1103/physreva.77.052333
published as Phys. Rev. A 77, 052333 (2008) · revised version: minor changes, 2 references added, published version
openalex publication_date 2008/05/28 · arxiv created 2008/05/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
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 noninteracting 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.