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 language | English |
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Article number | A69 |
Journal | Physical Review Applied |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - 20 Oct 2021 |
Keywords
- quant-ph
- cond-mat.mes-hall
ASJC Scopus subject areas
- General Physics and Astronomy