Quantum Fisher Information of Schrödinger Cat States

ORAL

Abstract

A general expression for the quantum Fisher information (QFI) of atomic Schrödinger cat states is presented. We analyze the dependence of the QFI on the cat state parameters and demonstrate a possibility to achieve the Heisenberg limit scaling of the Ramsey interferometric measurements. Interplay between non-classical correlations between atoms and maximization of QFI of the cat states is discussed.

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Presenters

  • Vladimir S Malinovsky

    • US Army Research Lab Adelphi

Authors

  • Vladimir S Malinovsky

    • US Army Research Lab Adelphi

  • Sebastian C Carrasco

    • US Army Research Lab Adelphi
    • DEVCOM Army Research Lab

  • Michael H Goerz

    • US Army Research Lab
    • DEVCOM Army Research Lab

  • Zeyang Li

    • MIT
    • Massachusetts Institute of Technology MIT

  • Simone Colombo

    • Massachusetts Institute of Technology

  • Vladan Vuletic

    • Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology