Entanglement Dynamics for three and more Excitons in a Strained Graphene Sheet, embedded in a microcavity

POSTER

Abstract

We present a numerical analysis of the quantum entanglement between three and more qubits consisting of excitons in a strained graphene sheet, embedded in an optical microcavity. We analyze the time evolution of the entanglement for the system by calculating the time evolution of the negativity and the three-pi for the three-qubit case, both with and without cavity decay. We also provide a framework for the N-qubit entanglement analysis. Special attention is given to the evolution of the entanglement when the system starts out in the Greenberger-Horne-Zeilinger (GHZ) state, which is a strongly entangled state between three qubits with no pairwise entanglement.

*The authors are grateful for support by grants: O.L.B. from U.S. ARO grant No. W911NF1810433. G.P.M. and GG acknowledge the support from the US AFRL Grant No. FA9453-21-1-0046.

Presenters

  • Gabriel Pimenta Martins

    • The Graduate Center, City University of New York

Authors

  • Gabriel Pimenta Martins

    • The Graduate Center, City University of New York

  • Oleg L Berman

    • New York City College of Technology

  • Godfrey Gumbs

    • City University of New York
    • Hunter College of CUNY
    • City College of New York
    • Hunter College of New York

  • Yu (Yurii) E Lozovik

    • Institute of Spectroscopy, Russian Academy of Sciences
    • Russian Institute of Spectroscopy