Quantum sensing with superconducting microwave circuits

ORAL

Abstract

Quantum mechanics offers intriguing opportunities for sensing applications with accuracies beyond the classically obtainable limits. An especially interesting approach is based on using entangled microwave photons for radar applications [Las Heras et al., Sci. Rep., 7, 9333 (2017)]. Here, we discuss a novel frequency-degenerate scheme for quantum sensing with superconducting microwave circuits. Our method is based on continuous variables that provide a convenient platform for quantum communication [Pogorzalek et al., Nat. Commun., 10, 2604 (2019)]. The same microwave regime is utilized in conventional radars owing to the transparency window of the atmosphere. Hence, our scheme suffers no conversion losses and, therefore, is promising for future real-world applications.

*We acknowledge the support by the Germany’s Excellence Strategy EXC-2111-390814868, Elite Network of Bavaria through the program ExQM, and the European Union via the Quantum Flagship project QMiCS (Grant No. 820505).

Presenters

  • Matti Partanen

    • QCD Labs, QTF Center of Excellence, Department of Applied Physics, Aalto University
    • Walther-Meissner-Institut, Munich, Germany
    • Walther-Meißner-Institut & Technische Universtät München, Germany
    • Department of Applied Physics, Aalto University

Authors

  • Matti Partanen

    • QCD Labs, QTF Center of Excellence, Department of Applied Physics, Aalto University
    • Walther-Meissner-Institut, Munich, Germany
    • Walther-Meißner-Institut & Technische Universtät München, Germany
    • Department of Applied Physics, Aalto University
  • Kirill Fedorov

    • Walther-Meissner-Institut, Munich, Germany
    • Walther-Meißner-Institut & Technische Universtät München, Germany
  • Stefan Pogorzalek

    • Walther-Meissner-Institut, Munich, Germany
    • Walther-Meißner-Institut & Technische Universtät München, Germany
    • Walther Meissner Inst
  • Michael Renger

    • Walther-Meissner-Institut, Munich, Germany
  • Qi-Ming Chen

    • Walther-Meissner-Institut, Munich, Germany
    • Walther-Meißner-Institut & Technische Universtät München, Germany
  • Achim Marx

    • Walther-Meissner-Institut, Munich, Germany
    • Walther-Meißner-Institut & Technische Universtät München, Germany
    • Walther Meissner Inst
  • Frank Deppe

    • Walther-Meissner-Institut, Munich, Germany
    • Walther-Meißner-Institut & Technische Universtät München, Germany
  • Rudolf O Gross

    • Walther-Meissner-Institut, Munich, Germany
    • Bayerische Akademie der Wissenschaften, Walther-Meißner-Institut
    • Walther Meissner Inst