Microsecond-Scale High-Survival and Number-Resolved Detection of Ytterbium Atom Arrays
Year: 2025
Authors: Falconi A.M., Panza R., Sbernardori S., Forti R., Klemt R., Karim O.A., Marinelli M., Scazza F.
Autors Affiliation: Univ Trieste, Dept Phys, I-34127 Trieste, Italy; Consiglio Nazl Ric CNR, Ist Nazl Ott INO, I-34149 Trieste, Italy; Elettra Sincrotrone Trieste SCpA, I-34149 Trieste, Italy; Univ Stuttgart, Phys Inst, D-70569 Stuttgart, Germany; Univ Stuttgart, Ctr Integrated Quantum Sci & Technol, D-70569 Stuttgart, Germany; Consiglio Nazl Ric CNR, Ist Officina Materiali IOM, I-34149 Trieste, Italy.
Abstract: Scalable atom-based quantum platforms for simulation, computing, and metrology require fast high-fidelity, low-loss imaging of individual atoms. Standard fluorescence detection methods rely on continuous cooling, limiting the detection range to one atom and imposing long imaging times that constrain the experimental cycle and midcircuit conditional operations. Here, we demonstrate fast and low-loss single-atom imaging in optical tweezers without active cooling, enabled by the favorable properties of ytterbium. Collecting fluorescence over microsecond timescales, we reach single-atom discrimination fidelities above 99.9% and single-shot survival probabilities above 99.5%. Through interleaved recooling pulses, as short as a few hundred microseconds for atoms in magic traps, we perform tens of consecutive detections with constant atom-retention probability per image-an essential step toward fast atom reuse in tweezer-based processors and clocks. Our scheme does not induce parity projection in multiply occupied traps, enabling number-resolved single-shot detection of several atoms per site. This allows us to study the near-deterministic preparation of single atoms in tweezers driven by blue-detuned light-assisted collisions. Moreover, the near-diffraction-limited spatial resolution of our low-loss imaging enables number-resolved microscopy in dense arrays, opening the way to direct site-occupancy readout in optical lattices for density fluctuation and correlation measurements in quantum simulators.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 135 (20) Pages from: 203402-1 to: 203402-9
More Information: We thank M. Aidelsburger, F. Cesa, N. Darkwah Oppong, F. Ferlaino, S. Jochim, P. Lunt, G. Pagano, and J. Thompson for insightful discussions. We also thank L. Tanzi for lending us the qCMOS camera, and the Trieste Quantum initiative for the support. This work has received financial support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Project OrbiDynaMIQs, GA No. 949438) , and from the Italian MUR under the FARE 2020 program (project FastOrbit, Prot. R20WNHFNKF) . This work has also received funding from the European Union under the Horizon Europe program HORIZON-CL4-2022-QUANTUM-02-SGA (Project PASQuanS2.1, GA No. 101113690) , and by the Next Generation EU (Missione 4, Componente 1) under the MUR PRIN 2022 program (Project CoQuS, Prot. 2022ATM8FY) and the PNRR MUR Project PE0000023-NQSTI. R. K. acknowledges funding from the European Research Council (ERC) (Grant Agreement No. 101019739) .KeyWords: Erasure Conversion; Single Atoms; Quantum; Lifetimes; SpinDOI: 10.1103/n3bg-7yw7Citations: 2data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2026-01-25References taken from IsiWeb of Knowledge: (subscribers only)
