High-efficiency loading of 2,400 Ytterbium atoms in optical tweezer arrays

• URL: http://arxiv.org/abs/2512.19795v1
• Date: Mon, 22 Dec 2025 19:00:03 GMT
• Title: High-efficiency loading of 2,400 Ytterbium atoms in optical tweezer arrays
• Authors: Jiawen Zhu, Changfeng Chen, Li Zhou, Xiangru Xie, Chenyang Jiang, Zhuoli Ding, Fan Wu, Fan Yang, Guoqing Wang, Qihuang Gong, Peng Zhang, Sheng Zhang, Pai Peng,
• Abstract summary: We report 2,400 Ytterbium-174 atoms trapped in an optical tweezer array with enhanced single-atom loading efficiency of 83.5(1)%.<n>Our work advances the prospects for realizing large-scale quantum computers using alkaline-earth-like atoms.
• Score: 22.824740260834798
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Neutral atom arrays have emerged as a powerful platform for quantum computation, simulation, and metrology. Among them, alkaline-earth-like atoms exhibit distinct advantages, including long coherence time and high-fidelity Rydberg gates. However, their scalability has lagged behind that of the alkali atoms. Here, we report 2,400 Ytterbium-174 atoms trapped in an optical tweezer array with enhanced single-atom loading efficiency of 83.5(1)%. Notably, the loading efficiency is largely maintained for array sizes ranging from dozens to thousands, exhibiting excellent scalability. We demonstrate the broad applicability of the enhanced loading method by showing that the enhancement exists robustly across a range of interatomic potentials, suggesting its utility for other atomic species. To establish the capability of the 174Yb arrays toward universal quantum computation, we propose to encode the qubit in the ground-clock state manifold and estimate a 99.9% two-qubit gate fidelity with experimentally feasible parameters. Our work advances the prospects for realizing large-scale quantum computers using alkaline-earth-like atoms.

Related papers

• Trapping of Single Atoms in Metasurface Optical Tweezer Arrays [26.730850617307674]
  We demonstrate the trapping of single strontium atoms in optical tweezer arrays generated via holographic metasurfaces.<n>We realize two dimensional arrays with more than 1000 trapped atoms, arranged in arbitrary geometries with trap spacings as small as 1.5 um.<n>This is enabled by highly efficient holographic metasurfaces fabricated from high-refractive index materials.
  arXiv  Detail & Related papers  (2024-11-08T04:26:10Z)
• A tweezer array with 6100 highly coherent atomic qubits [0.5277756703318045]
  We experimentally realize an array of optical tweezers trapping over 6,100 neutral atoms in around 12,000 sites.<n>We demonstrate a coherence time of 12.6(1) seconds, a record for hyperfine qubits in an optical tweezer array.<n>Our results, along with recent developments, indicate that universal quantum computing and quantum error correction with thousands to tens of thousands of physical qubits could be a near-term prospect.
  arXiv  Detail & Related papers  (2024-03-18T17:55:14Z)
• Iterative assembly of $^{171}$Yb atom arrays with cavity-enhanced optical lattices [0.1441195472527485]
  Assembling and maintaining large arrays of individually addressable atoms is a key requirement for continued scaling of neutral-atom-based quantum computers and simulators. We demonstrate a new paradigm for assembly of atomic arrays, based on a synergistic combination of optical tweezers and cavity-enhanced optical lattices.
  arXiv  Detail & Related papers  (2024-01-29T14:20:28Z)
• Supercharged two-dimensional tweezer array with more than 1000 atomic qubits [0.0]
  Supercharging one array designated as quantum processing unit with atoms from the secondary array significantly increases the number of qubits and the initial filling fraction. This drastically enlarges attainable qubit cluster sizes and success probabilities. The presented method substantiates neutral atom quantum information science by facilitating geometries of highly scalable quantum registers.
  arXiv  Detail & Related papers  (2023-10-13T15:31:42Z)
• Quantum Gate Optimization for Rydberg Architectures in the Weak-Coupling Limit [55.05109484230879]
  We demonstrate machine learning assisted design of a two-qubit gate in a Rydberg tweezer system. We generate optimal pulse sequences that implement a CNOT gate with high fidelity. We show that local control of single qubit operations is sufficient for performing quantum computation on a large array of atoms.
  arXiv  Detail & Related papers  (2023-06-14T18:24:51Z)
• Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
  We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems. Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
  arXiv  Detail & Related papers  (2022-06-03T14:52:34Z)
• Ytterbium nuclear-spin qubits in an optical tweezer array [0.0]
  We report on the realization of a fast, scalable, and high-fidelity qubit architecture, based on $171$Yb atoms in an optical tweezer array. We demonstrate several attractive properties of this atom for its use as a building block of a quantum information processing platform.
  arXiv  Detail & Related papers  (2021-12-13T15:36:28Z)
• Hardware-Efficient, Fault-Tolerant Quantum Computation with Rydberg Atoms [55.41644538483948]
  We provide the first complete characterization of sources of error in a neutral-atom quantum computer. We develop a novel and distinctly efficient method to address the most important errors associated with the decay of atomic qubits to states outside of the computational subspace. Our protocols can be implemented in the near-term using state-of-the-art neutral atom platforms with qubits encoded in both alkali and alkaline-earth atoms.
  arXiv  Detail & Related papers  (2021-05-27T23:29:53Z)
• Hybrid quantum photonics based on artificial atoms placed inside one hole of a photonic crystal cavity [47.187609203210705]
  Hybrid quantum photonics with SiV$-$-containing nanodiamonds inside one hole of a one-dimensional, free-standing, Si$_3$N$_4$-based photonic crystal cavity is presented. The resulting photon flux is increased by more than a factor of 14 as compared to free-space. Results mark an important step to realize quantum network nodes based on hybrid quantum photonics with SiV$-$- center in nanodiamonds.
  arXiv  Detail & Related papers  (2020-12-21T17:22:25Z)
• Generation of Photonic Matrix Product States with Rydberg Atomic Arrays [63.62764375279861]
  We show how one can deterministically generate photonic matrix product states with high bond and physical dimensions with an atomic array. We develop a quantum gate and an optimal control approach to universally control the system and analyze the photon retrieval efficiency of atomic arrays.
  arXiv  Detail & Related papers  (2020-11-08T07:59:55Z)
• Deterministic Single Ion Implantation with 99.87% Confidence for Scalable Donor-Qubit Arrays in Silicon [44.62475518267084]
  Group-V-donor spins are attractive qubits for large-scale quantum computer devices. Group-V-donor spins implanted in an isotopically purified $28$Si crystal make them attractive qubits. We demonstrate the implantation of single low-energy (14 keV) P$+$ ions with an unprecedented $99.87pm0.02$% confidence.
  arXiv  Detail & Related papers  (2020-09-07T05:23:07Z)
• On-demand indistinguishable single photons from an efficient and pure source based on a Rydberg ensemble [48.879585399382435]
  Single photons coupled to atomic systems have shown to be a promising platform for developing quantum technologies. Yet a bright on-demand, highly pure and highly indistinguishable single-photon source compatible with atomic platforms is lacking. In this work, we demonstrate such a source based on a strongly interacting Rydberg system.
  arXiv  Detail & Related papers  (2020-03-04T17:16:56Z)
• High-Fidelity Entanglement and Detection of Alkaline-Earth Rydberg Atoms [48.093689931392866]
  Controlled two-qubit entanglement generation has so far been limited to alkali species. We demonstrate a novel approach utilizing the two-valence electron structure of individual alkaline-earth Rydberg atoms. We find fidelities for Rydberg state detection, single-atom Rabi operations, and two-atom entanglement surpassing previously published values.
  arXiv  Detail & Related papers  (2020-01-13T18:42:42Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.