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TZID:Europe/Vienna
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DTSTART:20200329T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
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DTSTART:20191027T020000
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BEGIN:VEVENT
DTSTAMP:20260404T015855Z
UID:5e4d3d7a0d122153639905@ist.ac.at
DTSTART:20200313T110000
DTEND:20200313T120000
DESCRIPTION:Speaker: Leonid Glazman\nhosted by Andrew Higginbotham\nAbstrac
 t: Superconducting qubits became a unique tool for studying the dynamics o
 f the Bogoliubov quasiparticles. Measurement of the transition rates betwe
 en various qubit states provides an access to the evolution and steady sta
 tes of the quasiparticle density. The circuit-QED qubit experiments in con
 junction with the theory which we developed reveal the low-temperature sat
 uration of the quasiparticle density\, signaling their non-equilibrium nat
 ure\; in some cases we are able to point to the source of the excess quasi
 particles. By analyzing the evolution of the intentionally-produced quasip
 articles\, we also characterized the quasiparticle trapping by the core of
  a single magnetic vortex and by small normal-metal inclusions. In a separ
 ate effort\, measurements of the T1 time of a flux-sensitive qubit (dubbed
  fluxonium) revealed\, for the first time\, the long-sought cos? dissipati
 ve Josephson current caused by quasiparticle tunneling.
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101)\, ISTA
ORGANIZER:astawick@ist.ac.at
SUMMARY:Leonid Glazman: Non-equilibrium quasiparticles in superconducting q
 ubits
URL:https://talks-calendar.ista.ac.at/events/2667
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