Light shift induced behaviors observed in momentum-space quantum walks

ORAL

Abstract

Quantum walks (QWs) have seen many advances both experimentally and theoretically over the last decade with many proposed applications. Recently, a QW was experimentally realized utilizing a Bose-Einstein Condensate (BEC) in momentum space. This QW was observed to be stable up to fifteen steps and exhibited behavior that agreed generally well with theoretical predictions. However, the QW also showed interesting behavior within the momentum distribution that wasn’t adequately explained by the theory. We propose a new theoretical model to offer an explanation based upon the parameters within the conducted experiments. This model also predicts that the discrepancy is dependent upon the initial momentum states used in creating the QW.

*Noble Foundation

–

Publication: Elementary interpretation for experimentally realized momentum-space quantum walk

Presenters

  • Jerry H Clark

    • Oklahoma State University-Stillwater

Authors

  • Jerry H Clark

    • Oklahoma State University-Stillwater

  • Nikolai Bolik

    • Institute for Theoretical Physics, Heidelberg University, Philosophenweg 12, 69120 Heidelberg, Germany

  • Caspar Groiseau

    • Dodd-Walls Centre for Photonic and Quantum Technologies, New Zealand

  • Alexander Gresch

    • Institute for Theoretical Physics, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany

  • Siamak Dadras

    • 6TOPTICA Photonics Inc., 5847 County Road 41, Farmington, New York 14424, USA

  • Gil Summy

    • Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072, USA

  • Yingmei Liu

    • Oklahoma State University-Stillwater

  • Sandro Wimberger

    • Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università di Parma, Parco Area delle Scienze 7/A, 43124 Parma, Italy