In-situ equalization of single-atom loading in large-scale optical tweezers arrays

Abstract

We report on the realization of large assembled arrays of more than 300 single ${}^{87}$Rb atoms trapped in optical tweezers in a cryogenic environment at $\sim 4$~K. For arrays with $N_{\mathrm{a}}=324$ atoms, the assembly process results in defect-free arrays in $\sim 37\%$ of the realizations. To achieve this high assembling efficiency, we equalize the loading probability of the traps within the array using a closed-loop optimization of the power of each optical tweezers, based on the analysis of the fluorescence time-traces of atoms loaded in the traps.

arXiv comment5 pages, 5 figures

References in corpus (21)

• Many-Body Physics with Individually-Controlled Rydberg Atoms
• Quantum Phases of Matter on a 256-Atom Programmable Quantum Simulator
• An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays
• Programmable quantum simulation of 2D antiferromagnets with hundreds of Rydberg atoms
• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Demonstration of multi-qubit entanglement and algorithms on a programmable neutral atom quantum computer
• Quantum computing with neutral atoms
• Quantum Optimization of Maximum Independent Set using Rydberg Atom Arrays
• Quantum simulation and computing with Rydberg-interacting qubits
• Single-atom trapping in holographic 2D arrays of microtraps with arbitrary geometries
• In situ single-atom array synthesis by dynamic holographic optical tweezers
• Seconds-scale coherence in a tweezer-array optical clock
• Ytterbium nuclear-spin qubits in an optical tweezer array
• Rapid production of uniformly-filled arrays of neutral atoms
• An atomic array optical clock with single-atom readout
• Enhanced atom-by-atom assembly of arbitrary tweezers arrays
• Grey-molasses optical-tweezer loading: Controlling collisions for scaling atom-array assembly
• Large-Scale Uniform Optical Focus Array Generation with a Phase Spatial Light Modulator
• Single Atoms with 6000-Second Trapping Lifetimes in Optical-Tweezer Arrays at Cryogenic Temperatures
• Dynamics of two atoms undergoing light-assisted collisions in an optical microtrap
• D1 magic wavelength tweezers for scaling atom arrays

Cited by in corpus (26)

• Noisy intermediate-scale quantum computers
• A tweezer array with 6100 highly coherent atomic qubits
• Continuous operation of large-scale atom arrays in optical lattices
• Supercharged two-dimensional tweezer array with more than 1000 atomic qubits
• Rearrangement of single atoms in a 2000-site optical tweezers array at cryogenic temperatures
• A universal neutral-atom quantum computer with individual optical addressing and non-destructive readout
• Parallel assembly of arbitrary defect-free atom arrays with a multi-tweezer algorithm
• Robust control and optimal Rydberg states for neutral atom two-qubit gates
• Cooperative quantum-optical planar arrays of atoms
• A scaled local gate controller for optically addressed qubits
• Ultra-precise holographic optical tweezers array
• Trapping and imaging single dysprosium atoms in optical tweezer arrays
• Trapping of Single Atoms in Metasurface Optical Tweezer Arrays
• Accelerating the assembly of defect-free atomic arrays with maximum parallelisms
• Reservoir-based deterministic loading of single-atom tweezer arrays
• A blueprint for a Digital-Analog Variational Quantum Eigensolver using Rydberg atom arrays
• Multi-scale architecture for fast optical addressing and control of large scale qubit arrays
• Functional completeness of planar Rydberg blockade structures
• Efficient algorithms to solve atom reconfiguration problems. I. The redistribution-reconfiguration (red-rec) algorithm
• Amorphous quantum magnets in a two-dimensional Rydberg atom array
• Rate-fidelity trade-off in cavity-based remote entanglement generation
• Hubbard parameters for programmable tweezer arrays
• Constructive plaquette compilation for the parity architecture
• Long-range $CC\Phi$ gates via radio-frequency-induced Förster resonances
• Flexible constraint compilation in the parity architecture
• Optimal control in phase space applied to minimal-time transfer of thermal atoms in optical traps