Speaker
Dr
Brent VanDevender
(Pacific Northwest National Laboratory)
Description
Excess quasiparticles are universally observed to limit coherence times in superconducting qubits. It is hypothesized that natural radiation in the laboratory environment could be the cause. We will review the evidence for excess quasiparticles and explore our hypothesis that environmental radiation is the source of them. Plans for an imminent experiment to test the hypothesis by placing a series of radioactive sources in close proximity to qubit specimens will be presented.
Primary author
Dr
Brent VanDevender
(Pacific Northwest National Laboratory)
Co-authors
Prof.
Joe Formaggio
(Massachusetts Institute of Technology)
Dr
John Orrell
(Pacific Northwest National Laboratory)
Prof.
Will Oliver
(Massachusetts Institute of Technology and Lincoln Labs)
