Communications Materials (Jul 2021)

Microscopic relaxation channels in materials for superconducting qubits

  • Anjali Premkumar,
  • Conan Weiland,
  • Sooyeon Hwang,
  • Berthold Jäck,
  • Alexander P. M. Place,
  • Iradwikanari Waluyo,
  • Adrian Hunt,
  • Valentina Bisogni,
  • Jonathan Pelliciari,
  • Andi Barbour,
  • Mike S. Miller,
  • Paola Russo,
  • Fernando Camino,
  • Kim Kisslinger,
  • Xiao Tong,
  • Mark S. Hybertsen,
  • Andrew A. Houck,
  • Ignace Jarrige

DOI
https://doi.org/10.1038/s43246-021-00174-7
Journal volume & issue
Vol. 2, no. 1
pp. 1 – 9

Abstract

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Understanding the connection between qubit coherence and microscopic materials properties is vital for improving device performance. Here, the relaxation times of superconducting transmon qubits are found to be directly correlated with Nb film properties such as grain size and surface oxide composition.