Stabilization of Qubit Relaxation Rates by Frequency Modulation

Shlomi Matityahu, Alexander Shnirman, Moshe Schechter

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Abstract

Temporal, spectral, and sample-to-sample fluctuations in coherence properties of qubits form an outstanding challenge for the development of upscaled fault-tolerant quantum computers. A ubiquitous source for these fluctuations in superconducting qubits is a set of atomic scale defects with a two-level structure. Here we propose a way to mitigate these fluctuations and stabilize the qubit performance. We show that frequency modulation of a qubit or, alternatively, of the two-level defects, leads to averaging of the qubit relaxation rate over a wide interval of frequencies.

Original languageEnglish
Article numberA69
JournalPhysical Review Applied
Volume16
Issue number4
DOIs
StatePublished - 1 Oct 2021

Keywords

  • quant-ph
  • cond-mat.mes-hall

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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