High-efficiency loading of 2,400 Ytterbium atoms in optical tweezer arrays
arXiv:2512.19795 · doi:10.1103/bp6k-8zmd
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, high-fidelity Rydberg gates, and erasure correction for efficient quantum error correction. However, their scalability has lagged behind that of the alkali atoms. Here, we report 2400 ytterbium-174 atoms trapped in an optical tweezer array with enhanced loading efficiency of 83.5(1)\% via blue-detuned light-assisted collisions. We develop a quantitative model of the collision dynamics and find good agreement between the calculated inelastic collision rates and the experimentally measured loading efficiencies.Notably, the loading efficiency is largely maintained for array sizes ranging from dozens to thousands, exhibiting excellent scalability. We further demonstrate that the enhancement exists robustly across a range of interatomic potentials, suggesting its utility for other atomic species. To establish the capability of the Yb 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.
References in corpus (55)
- Surface codes: Towards practical large-scale quantum computation
- Logical quantum processor based on reconfigurable atom arrays
- An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays
- Probing Topological Spin Liquids on a Programmable Quantum Simulator
- Demonstration of multi-qubit entanglement and algorithms on a programmable neutral atom quantum computer
- High-fidelity parallel entangling gates on a neutral atom quantum computer
- High-Fidelity Entanglement and Detection of Alkaline-Earth Rydberg Atoms
- High-fidelity gates with mid-circuit erasure conversion in a metastable neutral atom qubit
- Erasure conversion for fault-tolerant quantum computing in alkaline earth Rydberg atom arrays
- Evaporation of microwave-shielded polar molecules to quantum degeneracy
- Ytterbium nuclear-spin qubits in an optical tweezer array
- Realizing spin squeezing with Rydberg interactions in a programmable optical clock
- Erasure conversion in a high-fidelity Rydberg quantum simulator
- Assembly and coherent control of a register of nuclear spin qubits
- Universal gate operations on nuclear spin qubits in an optical tweezer array of Yb atoms
- Long-lived Bell states in an array of optical clock qubits
- Quantum networks with neutral atom processing nodes
- Multi-qubit gates and Schrödinger cat states in an optical clock
- Mid-circuit cavity measurement in a neutral atom array
- A tweezer array with 6100 highly coherent atomic qubits
- A dual-species Rydberg array
- Realization of strong coupling between deterministic single-atom arrays and a high-finesse miniature optical cavity
- Defect-free arbitrary-geometry assembly of mixed-species atom arrays
- Collisionally Stable Gas of Bosonic Dipolar Ground State Molecules
- High threshold codes for neutral atom qubits with biased erasure errors
- Continuous operation of large-scale atom arrays in optical lattices
- Universal quantum operations and ancilla-based readout for tweezer clocks
- Supercharged two-dimensional tweezer array with more than 1000 atomic qubits
- Benchmarking and fidelity response theory of high-fidelity Rydberg entangling gates
- Benchmarking highly entangled states on a 60-atom analog quantum simulator
- High-fidelity detection of large-scale atom arrays in an optical lattice
- Microwave shielding of bosonic NaRb molecules
- Optimizing Rydberg Gates for Logical Qubit Performance
- Rearrangement of single atoms in a 2000-site optical tweezers array at cryogenic temperatures
- A quantum-network register assembled with optical tweezers in an optical cavity
- Continuous operation of a coherent 3,000-qubit system
- A universal neutral-atom quantum computer with individual optical addressing and non-destructive readout
- Effective potential and superfluidity of microwave-dressed polar molecules
- Low-Overhead Transversal Fault Tolerance for Universal Quantum Computation
- A scaled local gate controller for optically addressed qubits
- Trapping of Single Atoms in Metasurface Optical Tweezer Arrays
- An integrated photonic engine for programmable atomic control
- AI-Enabled Rapid Assembly of Thousands of Defect-Free Neutral Atom Arrays with Constant-time-overhead
- D1 magic wavelength tweezers for scaling atom arrays
- Spectroscopy of elementary excitations from quench dynamics in a dipolar XY Rydberg simulator
- Observation of anomalous information scrambling in a Rydberg atom array
- Realization of a doped quantum antiferromagnet with dipolar tunnelings in a Rydberg tweezer array
- Parallelized telecom quantum networking with a ytterbium-171 atom array
- Extending the coherence time limit of a single-alkali-atom qubit by suppressing phonon-jumping-induced decoherence
- Observation of Near-Critical Kibble-Zurek Scaling in Rydberg Atom Arrays
- A fiber array architecture for atom quantum computing
- A cavity array microscope for parallel single-atom interfacing
- Microsecond-scale high-survival and number-resolved detection of ytterbium atom arrays
- Volcano Architecture for Scalable Quantum Processor Units
- Logical qubits with erasure conversion using metastable neutral atoms