ArticleNature communications2024
A stress-induced source of phonon bursts and quasiparticle poisoning.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed.
- Particle background characterization and prediction for the NUCLEUS reactor CEThe European physical journal. C, Particles and fields · 2026Article
- Synchronous detection of cosmic rays and correlated errors in superconducting qubit arrays.Nature communications · 2025Article
- Phonon downconversion to suppress correlated errors in superconducting qubits.Nature communications · 2022Article
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Authors and funding
46 authors.
Funding
Abstract
The performance of superconducting qubits is degraded by a poorly characterized set of energy sources breaking the Cooper pairs responsible for superconductivity, creating a condition often called "quasiparticle poisoning". Both superconducting qubits and low threshold dark matter calorimeters have observed excess bursts of quasiparticles or phonons that decrease in rate with time. Here, we show that a silicon crystal glued to its holder exhibits a rate of low-energy phonon events that is more than two orders of magnitude larger than in a functionally identical crystal suspended from its holder in a low-stress state. The excess phonon event rate in the glued crystal decreases with time since cooldown, consistent with a source of phonon bursts which contributes to quasiparticle poisoning in quantum circuits and the low-energy events observed in cryogenic calorimeters. We argue that relaxation of thermally induced stress between the glue and crystal is the source of these events.
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Registered trials
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