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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-9645
DTSTART:20260414T200000Z
DTEND:20260414T230000Z
DTSTAMP:20260411T002415Z
LAST-MODIFIED:20260406T181216Z
LOCATION:5310 Chamberlin Hall
SUMMARY:System-Level Quantum Networking: Entanglement\, Metrology\, an
 d Quantum Memory in Deployed Fiber Systems\, Atomic Physics Seminar\, 
 Dr. Jing Su\, University of Maryland
DESCRIPTION:We present a system-level approach to quantum networking t
 hat integrates entanglement distribution\, precision metrology\, and q
 uantum memory in deployed fiber environments. Polarization-entangled p
 hotons are distributed over stabilized links with active feedback cont
 rol\, achieving high visibility and robust channel uptime. Network-com
 patible calibration techniques\, including synchronized power measurem
 ents and remote detector calibration\, enable accurate and scalable sy
 stem characterization. Ancilla-assisted process tomography (AAPT) is e
 mployed to characterize quantum processes and quantify channel perform
 ance with high fidelity\, supporting stable multi-node operation. In p
 arallel\, electromagnetically induced transparency (EIT)–based quant
 um memory in cesium vapor cells is studied\, with anti-relaxation coat
 ings significantly improving storage efficiency and coherence time. To
 gether\, these results demonstrate a practical and scalable framework 
 for real-world quantum networks.
URL:https://www.physics.wisc.edu/events/?id=9645
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