BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:3
UID:UW-Physics-Event-8975
DTSTART:20251114T213000Z
DTEND:20251114T223000Z
DTSTAMP:20260410T212442Z
LAST-MODIFIED:20251111T151439Z
LOCATION:Chamberlin 2241
SUMMARY:Distributed quantum science with neutral atom arrays\, Physics
  Department Colloquium\, Jake Covey\, University Illinois Ubana-Champa
 ign
DESCRIPTION:The realization of fast and high-fidelity entanglement bet
 ween separated arrays of neutral atoms would enable a host of new oppo
 rtunities in quantum communication\, distributed quantum sensing\, and
  modular quantum computation. In this talk\, I will describe two appro
 aches we are pursuing to generate fast and high-fidelity remote entang
 lement. In the first approach\, we have demonstrated a photonic interc
 onnect based on high-fidelity entanglement of the metastable nuclear s
 pin-1/2 qubit in ytterbium-171 and a telecom-band photon with time-bin
  encoding. We have realized an atom-photon Bell state fidelity of 0.95
  when correcting for atomic measurement errors. As an extension of thi
 s work\, I will describe a second system based on ytterbium-171 atom a
 rrays in a near-concentric optical cavity. We anticipate the ability t
 o generate atom-atom Bell pairs with fidelity approaching 0.99 and rat
 e of 10^4 ebits/sec using this telecom photonic interface. In the seco
 nd approach\, I will introduce a novel technique for transporting larg
 e tweezer arrays over 200 mm within a single vacuum chamber via a micr
 oscope objective mounted on an air-bearing linear motion stage. I will
  describe our vision for modular quantum computation based on an array
  of atom arrays.
URL:https://www.physics.wisc.edu/events/?id=8975
END:VEVENT
END:VCALENDAR