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Kinetic Inductance Measurement of Niobium Diselenide (NbSe<sub>2</sub>) using MicrowaveTechniques

ORAL

Abstract

Superconductors with high kinetic inductance at microwave frequencies can suppress charge fluctuations in quantum circuits. This property provides a platform for creating the so-called protected qubits such as fluxonium and zero-pi qubits as well as other quantum devices. In this experiment, we measure the kinetic inductance of thin (thickness <10 nm) NbSe2, a van der Waals superconductor, by using circuit quantum electrodynamics (cQED) architecture. Thin NbSe2 flakes, entirely encapsulated by hexagonal boron nitride (hBN), have been incorporated into a superconducting coplanar resonator. By measuring the resonance characteristics of this resonator in the low-temperature, low-photon number limit, we extract the kinetic inductance and the quality factor of this 2D crystalline superconductor. Our approach can be applied to study a wide variety of 2D superconductors relevant to constructing high coherence superconducting quantum circuits.

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Presenters

  • Sameia Zaman

    Massachusetts Institute of Technology MIT

Authors

  • Sameia Zaman

    Massachusetts Institute of Technology MIT

  • Miuko Tanaka

    Massachusetts Institute of Technology (MIT), Massachusetts Institute of Technology

  • Joel I Wang

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology

  • Thao H Dinh

    Massachusetts Institute of Technology MIT, Harvard University

  • Max Hays

    Massachusetts Institute of Technology (MIT), MIT, Massachusetts Institute of Technology

  • Daniel Rodan-Legrain

    Massachusetts Institute of Technology MIT

  • David K Kim

    MIT Lincoln Lab, MIT Lincoln Laboratory

  • Alexander Melville

    MIT Lincoln Laboratory

  • Bethany M Niedzielski

    MIT Lincoln Lab, MIT Lincoln Laboratory

  • Kyle Serniak

    MIT Lincoln Laboratory

  • Mollie E Schwartz

    MIT Lincoln Laboratory

  • Jonilyn L Yoder

    MIT Lincoln Lab, MIT Lincoln Laboratory

  • Kenji Watanabe

    National Institute for Materials Science, Research Center for Functional Materials, National Institute of Materials Science, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan, NIMS, Research Center for Functional Materials, National Institute for Materials Science, National Institute for Materials Science, Japan, Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Japan, NIMS Japan

  • Takashi Taniguchi

    National Institute for Materials Science, Kyoto University

  • Terry P Orlando

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology

  • Jeffrey A Grover

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology (MIT), Massachusetts Institute of Technology

  • Simon Gustavsson

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology

  • Pablo Jarillo-Herrero

    Massachusetts Institute of Technology MIT

  • William D Oliver

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology (MIT), MIT Lincoln Laboratory, Massachusetts Institute of Technology (MIT), Massachusetts Institute of Technology, Massachusetts Institute of Technology, MIT Lincoln Laboratory