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DTSTART:20260329T030000
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BEGIN:VEVENT
DTSTAMP:20261007T215609Z
UID:1792141200@ist.ac.at
DTSTART:20261016T110000
DTEND:20261016T120000
DESCRIPTION:Speaker: Justus Bruggenjurgen\nhosted by Julian Leonard\nAbstra
 ct: Neutral atom arrays are a leading platform for quantum computation and
  simulation\, offering identical qubits\, programmability\, and reconfigur
 able interactions. Integrating atom-arrays with photonic interfaces\, like
  cavities\, can enable sub-microsecond qubit readout\, efficient atom-phot
 on entanglement\, and enable new quantum simulation capabilities through l
 ong-range interactions. However\, scalable and efficient integration of at
 om-arrays with such photonic interfaces remains a major challenge.    W
 e present an atom-array cavity-array platform integrating cesium atom arra
 ys with a photonic chip containing over 100 nanophotonic crystal cavities.
  To enable this\, we developed a background-free imaging scheme using exci
 ted-state transitions in cesium with >99% fidelity and a photonic chip des
 ign optimized for efficient atom loading and free-space coupling scheme ac
 hieving >65% waveguide-to-fiber coupling efficiency [1].    We demonstr
 ate collisional-blockade limited loading of atom array next to photonic ch
 ip\, parallel transport of atoms to multiple cavities\, and achieving atom
 -cavity separations as small as 300 nm. At these distances\, atom-photon i
 nteraction strengths exceeding 1 GHz are achievable. We present these capa
 bilities along with our efforts toward single-photon extraction through at
 om-cavity coupling as well as multi-cavity addressing and coupling. These 
 results address key integration challenges and pave the way for quantum ne
 tworking and distributed quantum computing. Dahlia Ghoshal\, Nayana Tiwar
 i\, Carl Meeuw\, Emily Schaffrath\, Alex Korsch\, Justus Brüggenjürgen\,
  Hannes Bernien [1] Menon\, S. G.\, Glachman\, N.\, Pompili\, M.\, Dibos
 \, A. & Bernien\, H. An integrated atom array-nanophotonic chip platform w
 ith background-free imaging. Nat. Commun. 15\, 6156 (2024).
LOCATION:Sunstone Bldg / Ground floor / Big Seminar Room A\, ISTA
ORGANIZER:Stephanie.Dolot@ist.ac.at
SUMMARY:Justus Bruggenjurgen: "Integrating cavity arrays with atom arrays f
 or quantum networks"
URL:https://talks-calendar.ista.ac.at/events/6608
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