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CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-9340
DTSTART:20251002T150000Z
DTEND:20251002T160000Z
DTSTAMP:20260413T084054Z
LAST-MODIFIED:20251001T184839Z
LOCATION:5310 Chamberlin
SUMMARY:Cavity QED with molecular defects coupled to a photonic crysta
 l cavity\, R. G. Herb Condensed Matter Seminar\, Jonathan Hood\, Purdu
 e
DESCRIPTION:We implement permanent spectral tuning to bring lifetime-l
 imited emitters into collective resonance within an integrated photoni
 c cavity. This addresses a fundamental challenge in solid-state cavity
  QED: combining multiple coherent quantum emitters with scalable nanop
 hotonics. Our hybrid approach decouples emitter synthesis from nanopho
 tonic fabrication using straightforward techniques that make cavity QE
 D broadly accessible. Building on our previous demonstration of superr
 adiance and subradiance in pairs of molecules [1]\, we now couple seve
 ral coherent emitters to a single cavity mode through high doping dens
 ities. Optically-induced frequency shifting provides long-lived spectr
 al control\, allowing us to tune multiple molecules into resonance and
  demonstrate controlled formation of collective quantum states [2]. Th
 is establishes a scalable platform for many-body cavity QED and opens 
 pathways toward chemically-designed quantum systems where optical prop
 erties are engineered through synthetic chemistry. We will also report
  on progress in our ultracold Li-Cs experiment\, including cooling wit
 h the narrow 5D transition [3].
\n[1] C. Lange\, E. Daggett\, V. Walth
 er\, L. Huang\, and J.D. Hood\, Nature Physics (2024)
\n[2] C. Lange e
 t al.\, arXiv:2406.01917 (2025)
\n[3] Blodgett et al.\, arXiv :2505.10
 540 (2025)
\n
URL:https://www.physics.wisc.edu/events/?id=9340
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