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PRODID:UW-Madison-Physics-Events
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UID:UW-Physics-Event-9342
DTSTART:20250829T190000Z
DTEND:20250829T210000Z
DTSTAMP:20260413T083917Z
LAST-MODIFIED:20250730T192229Z
LOCATION:B343 Sterling
SUMMARY:Progress toward efficient quantum networking with neutral atom
 s\, Preliminary Exam\, Eunji Oh\, Physics PhD Graduate Student
DESCRIPTION:Development of quantum networks that interconnect multiple
  quantum processors is a central goal in quantum information science. 
 Such networks enable remote entanglement\, distributed quantum computi
 ng and quantum sensing. To make this possible\, it is crucial to reali
 ze a robust and scalable platform which can serve as a building block 
 of a quantum network.     In this talk\, I will present our recent pro
 gress toward building a quantum networking node capable of storing\, p
 rocessing\, and distributing quantum information. Our system uses a co
 mpact\, fiber-integrated\, plug-and-play architecture based on a parab
 olic mirror\, with two such nodes currently in operation. I will highl
 ight our efforts to generate atom-photon entanglement between a statio
 nary qubit (Rb-87 atom) and a flying qubit (photon)\, as well as discu
 ss our future plans for achieving atom-atom entanglement - a key primi
 tive for long-distance quantum networking.     In addition to our netw
 orking efforts\, I will also present our development of a fast and sca
 lable method in controlling the quantum state of qubits in large 2D ar
 rays. While spatial light modulators (SLMs) offer flexible control\, t
 heir slow response times limit their use in fast quantum gate operatio
 ns. We address this by combining an SLM with a high-speed deflector to
  create a hybrid beam scanner. This approach enables rapid\, site-sele
 ctive quantum state manipulation with addressing rates orders of magni
 tude faster than SLMs alone.
URL:https://www.physics.wisc.edu/events/?id=9342
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