Quantum information processing and quantum simulations with alkaline-earth atoms in an optical lattice

ORAL

Abstract

We describe a method for quantum information processing and quantum simulation with alkaline-earth atoms in an optical lattice. First, we propose and analyze a novel approach to quantum information processing, in which multiple qubits can be encoded and manipulated using electronic and nuclear degrees of freedom associated with individual alkaline-earth atoms trapped in an optical lattice. We discuss potential applications of this approach to fault-tolerant quantum computation and precision measurements. In addition, we propose to use alkaline-earth atoms in optical lattices for quantum simulation of models that are beyond the generic Hubbard model and that rely on the interplay between spin and orbital degrees of freedom. In addition to being interesting and rich in their own right, such models may allow generating fundamental insights into the physics of solid-state systems such as transition metal oxides and heavy fermion materials, which exhibit numerous exotic properties including high temperature superconductivity and spin liquid phases.

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Authors

  • Alexey Gorshkov

    Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA, Physics Department, Harvard University, Physics Department, Harvard University, Cambridge, MA 02138, USA, Harvard University, Harvard University, Cambridge, MA 02138, USA

  • Eugene Demler

    Physics Department, Harvard University, Cambridge, MA 02138, USA, Physics Department, Harvard University, Cambridge-MA, 20138., Harvard University, Cambridge, MA 02138, USA, Harvard University

  • Mikhail Lukin

    Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA, Physics Department, Harvard University, Cambridge, MA 02138, USA, Harvard University, Department of Physics, Physics Department, Harvard University, Harvard University, Harvard University, Cambridge, MA 02138, USA

  • Andrew Daley

    Institute for Theoretical Physics, University of Innsbruck, and Institute for Quantum Optics and Quantum Information, A-6020 Innsbruck, Austria, University of Innsbruck and IQOQI, A-6020 Innsbruck, Austria

  • Peter Zoller

    Institute for Theoretical Physics, University of Innsbruck, and Institute for Quantum Optics and Quantum Information, A-6020 Innsbruck, Austria, University of Innsbruck and IQOQI, A-6020 Innsbruck, Austria

  • Martin Boyd

    JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309-0440, USA, JILA, NIST and University of Colorado, JILA and University of Colorado, Boulder, CO 80309, USA

  • J. Ye

    JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309-0440, USA, JILA, NIST and University of Colorado, JILA and University of Colorado, Boulder, CO 80309, USA

  • Michael Hermele

    JILA and Department of Physics, University of Colorado, Boulder, CO 80309, USA, JILA and University of Colorado, Boulder, CO 80309, USA

  • Victor Gurarie

    JILA and Department of Physics, University of Colorado, Boulder, CO 80309, USA, JILA and University of Colorado, Boulder, CO 80309, USA

  • Ana Maria Rey

    JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309-0440, USA, Department of Physics, University of Colorado (JILA), JILA and Department of Physics, University of Colorado, Boulder, CO 80309, USA, JILA \& Department of Physics, University of Colorado at Boulder, JILA and Department of Physics, University of Colorado, Boulder, Colorado, JILA and University of Colorado, Boulder, CO 80309, USA