BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:LASSP & AEP Seminar by Britton Plourde (Syracuse University)
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260719T091649Z
UID:tag:localist.com\,2008:EventInstance_40757715759208
DTSTART:20221115T172000Z
DTEND:20221115T182000Z
DESCRIPTION:Britton Plourde\nProfessor of Physics\nSyracuse University\n\nP
 rotecting Superconducting Qubits from Environmental Poisoning\n\nSupercond
 ucting circuits are an attractive system for forming qubits in a quantum c
 omputer because of the natural energy gap to excitations in the supercondu
 ctor. However\, experimentally it is observed that superconducting qubits 
 have excitations above the superconducting ground state\, known as quasipa
 rticles\, at a density that is many orders of magnitude above the expected
  equilibrium level. These quasiparticles are dissipative and can directly 
 impact qubit coherence\; in some cases\, quasiparticle poisoning bursts ca
 n lead to correlated errors between qubits across an array\, a process tha
 t is fatal to quantum error correction schemes. Quasiparticles can be gene
 rated by a range of energy-deposition sources\, including photons from the
  qubit environment with energy above the superconducting gap\, or the impa
 ct of high-energy particles from background radioactivity or cosmic ray mu
 ons. Following an overview of these various quasiparticle poisoning mechan
 isms\, I will describe two recent experiments: one studying absorption of 
 photons by spurious antenna modes of qubit structures\, the other measurin
 g correlated phonon-mediated quasiparticle poisoning in multiqubit chips i
 n the aftermath of particle impacts. I will discuss strategies for mitigat
 ing these poisoning effects for the implementation of future fault-toleran
 t quantum processors.\n\nHosted by Valla Fatemi\n\nPizza served starting a
 t 12:10 p.m.\nPlease bring your own beverage\n\nFor those who cannot atten
 d in person but would like to see the seminar\, livestream only will be av
 ailable via Zoom:\nhttps://cornell.zoom.us/j/98722799978?pwd=OEdYdGpWYjVuS
 Hh2Ry82NGw3T3ZZQT09\nWebinar ID: 987 2279 9978\nPasscode: 8235
GEO:42.449761;-76.4812
LOCATION:Clark Hall\, 700
SUMMARY:LASSP & AEP Seminar by Britton Plourde (Syracuse University)
URL;VALUE=URI:https://events.cornell.edu/event/lassp_and_aep_seminar_by_bri
 tton_plourde_syracuse_university
CATEGORIES:Seminar
END:VEVENT
END:VCALENDAR