Alkaline-earth atoms as few-qubit quantum registers

POSTER

Abstract

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. Specifically, we describe how the qubits within each register can be individually manipulated and measured with sub-wavelength optical resolution. We also show how such few-qubit registers can be coupled to each other in optical superlattices via conditional tunneling to form a scalable quantum network. Finally, potential applications to quantum computation and precision measurements are discussed.

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

  • 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

  • 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

  • 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

  • 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

  • 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