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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3555
DTSTART:20150112T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T142625Z
LAST-MODIFIED:20150107T201848Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Studies of Correlations in Low-Disorder 2D Electron Gases in M
 BE-Grown GaAs\, R. G. Herb Condensed Matter Seminar\, John Watson\, Pu
 rdue
DESCRIPTION:GaAs/AlGaAs heterostructures have served as one of the mos
 t ideal material systems for studies of electron interactions in mesos
 copic physics for the past three decades.  The high quality of the 2D 
 electron gases that can be generated in these structures has enabled a
  wide range of research in topics such as the search for non-Abelian s
 tates of matter in the fractional quantum Hall regime and scaleable sp
 in-based quantum computation.  In this talk\, I will present my work o
 n advancing the state-of-the-art in GaAs materials and devices.  In pa
 rticular\, I will discuss advances our group has made to reach low tem
 perature electron mobilities as high as 32 x 106 cm2/Vs and the impact
  this has had on work in the quantum Hall regime and with spin qubits.
   In addition\, I will discuss progress with density-tuneable devices 
 intended to search for phase transitions in the fractional quantum Hal
 l state at ν = 5/2.  Finally\, I will present initial results from ou
 r work to improve the charge stability of devices useful for spin-base
 d qubits.
URL:https://www.physics.wisc.edu/events/?id=3555
END:VEVENT
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