BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-6837
DTSTART:20220201T170000Z
DTEND:20220201T180000Z
DTSTAMP:20260414T113405Z
LAST-MODIFIED:20220124T232414Z
LOCATION:https://www.youtube.com/channel/UCCzAySwQXF8J4kRolUzg2ww
SUMMARY:Coherent Control of Processes that Break the Dipole Blockade\,
  Wisconsin Quantum Institute\, Aaron Reinhard\, Kenyon College
DESCRIPTION:The Rydberg excitation blockade has enabled impressive ach
 ievements in quantum information and simulation.  However\, unwanted p
 rocesses may compromise the single-excitation behavior of the blockade
  and reduce its efficiency.  We study one such process\, state-mixing 
 interactions.  When ultracold atoms are excited to Rydberg states near
  Förster resonance\, up to ∼ 50% of the detected atoms can be found
  in dipole-coupled product states within tens of ns of excitation. The
 re has been disagreement in the literature regarding the mechanism by 
 which this mixing occurs.   <br>
\n<br>
\nWe use state-selective field
  ionization spectroscopy with single-event resolution to probe state m
 ixing near the 43D5/2 Förster resonance in Rb.  Our method allows us 
 to control the mechanism by which state-mixing interactions occur duri
 ng Rydberg excitation.  Additionally\, we use a rotary echo technique 
 to demonstrate the coherence of the evolution of mixed three-particle 
 states during our Rydberg excitation pulses.  The ability to coherentl
 y control state-mixing events will allow experimenters to avoid this u
 nwanted process when implementing quantum devices using neutral atoms.
URL:https://www.physics.wisc.edu/events/?id=6837
END:VEVENT
END:VCALENDAR