Microwave quantum optics with Josephson traveling wave parametric amplifiers : generation of two-mode squeezed states

ORAL

Abstract

Josephson traveling wave parametric amplifiers have recently emerged as very promising platform for novel quantum optics experiments in microwave domain [1]. Engineering them at sub-wavelength scales can allow complete control over wave dispersion and non-linear interactions [2]. We will present observation of broadband two-mode squeezing generated by exciting a Josephson TWPA [3]. We will further discuss the hindrance posed by spurious processes in generation of these non-classical states. Engineering the dispersion of the TWPA can offer efficient solutions for suppressing these spurious processes. We will highlight our efforts towards understanding and mitigating the degradation of two-mode squeezing by higher order processes.

[1] M. Esposito et.al., Appl. Phys. Lett. 119, 120501 (2021)

[2] A. Ranadive et. al., Nat Comm 13, 1737 (2022)

[3] M. Esposito et.al., Phys. Rev. Lett. 128, 153603 (2022)

*This work was supported by French ANR-15-IDEX-02, EU-Horizon 2020 (grant 899561, MSC-754303 and MSCA-IF-835791) and by Deutsche Forschungsgemeinschaft through the Emmy Noether program (Grant No.ME 4863/1-1).

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Presenters

  • Arpit Ranadive

    • Institut Neel

Authors

  • Arpit Ranadive

    • Institut Neel

  • Gwenael Legal

    • Institut Neel

  • Giulio Cappelli

    • Instutut Neel

  • Sina Böhling

    • Free University of Berlin

  • Luca Planat

    • Silent Waves

  • Sebastien Leger

    • Institut Neel

  • Dorian Fraudet

    • Institut Neel

  • Olivier Buisson

    • Institut Neel
    • Institut Néel - CNRS

  • Wiebke Guichard

    • Institut Neel
    • Institut Néel - CNRS

  • Cécile Naud

    • Institut Neel
    • Institut Néel - CNRS

  • Jose Aumentado

    • National Institute of Standards and Technology Boulder
    • National Institute of Standards and Technology

  • Florent Q Lecocq

    • National Institute of Standards and Technology, Boulder
    • National Institute of Standards and Technology
    • National Institute of Science and Technology

  • Anja Metelmann

    • Freie Univ Berlin

  • Nicolas Roch

    • Institut Neel
    • Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel

  • Martina Esposito

    • CNR - SPIN Institute