BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:3
UID:UW-Physics-Event-8390
DTSTART:20240314T150000Z
DTEND:20240314T160000Z
DTSTAMP:20260413T223603Z
LAST-MODIFIED:20240314T014026Z
LOCATION:5310 Chamberlin
SUMMARY:Detecting\, Studying\, and Eliminating Quasiparticles in Super
 conducting Circuits\, R. G. Herb Condensed Matter Seminar\, Eli Levens
 on-Falk\, USC
DESCRIPTION:Nonequilibrium populations of quasiparticle excitations pl
 ague superconducting circuits\, causing errors in quantum processors. 
 I will present our results using aluminum nanobridge Josephson junctio
 ns to detect quasiparticles as they trap and untrap in the junctions' 
 internal Andreev bound states. By carefully studying the trapping and 
 untrapping rates as a function of environmental conditions\, we can fi
 nd the quasiparticles' mechanisms of excitation\, relaxation\, and the
 rmalization. I will further discuss novel filter designs that can elim
 inate the high-frequency radiation that generates the quasiparticles i
 n the first place.
URL:https://www.physics.wisc.edu/events/?id=8390
END:VEVENT
END:VCALENDAR