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DTSTART:20180325T030000
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DTSTART:20171029T020000
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DTSTAMP:20260424T143330Z
UID:593e7ce54d8ab944203449@ist.ac.at
DTSTART:20180206T110000
DTEND:20180206T123000
DESCRIPTION:Speaker: Marcelo Goffman\nhosted by Georgios Katsaros\nAbstract
 : An Andreev quantum dot (AQD) is a phase-biased superconducting weak link
  in which discrete quasiparticle states\, called Andreev states\, develop 
 within the superconducting gap. In particular\, a single-channel AQD accom
 modates one Andreev state that can be occupied by either zero\, one or two
  quasiparticles. In a recent experiment we demonstrated the coherent manip
 ulation of the two-level system formed by the even states [1]. Moreover\, 
 as a common feature to other superconducting devices\, the single-occupied
  state of the AQD was also observed. In this talk\, I will present experim
 ents on Andreev quantum dots obtained from one-atom contacts between alumi
 num electrodes\, in which we probe quasiparticle dynamics using circuit-Qu
 antum Electro-Dynamics like techniques [1]. I will focus in particular on 
 the role of the odd state in the relaxation of the AQD and on the effect o
 f the cavity on the dynamics.*In collaboration with: L. Tosi\, H. Pothier 
 and C. UrbinaReferences[1] C. Janvier et al.\, Science 349\, 1199 (2015)
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:jdeanton@ist.ac.at
SUMMARY:Marcelo Goffman: Quasiparticle dynamics in Andreev quantum dots
URL:https://talks-calendar.ista.ac.at/events/1052
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