Efficient Assembly of a Defect-Free Quantum Register of 1024 Neutral-Atom Qubits

• URL: http://arxiv.org/abs/2608.12021v1
• Date: Wed, 12 Aug 2026 12:57:57 GMT
• Title: Efficient Assembly of a Defect-Free Quantum Register of 1024 Neutral-Atom Qubits
• Abstract summary: Low-entropy arrays of atomic quantum systems in optical tweezers offer unique prospects for fundamental research on few- and many-body systems as well as for extended applications in quantum technology.<n>We propel the neutral-atom quantum-technology platform by the rapid assembly of a regular two-dimensional quantum register of up to 1024 atomic qubits.<n>Our highly efficient microoptical architecture modularizes intensity and tweezer patterning in separate functional units, eliminating restrictions that arise for high-power, high-resolution, and large-scale light-field control within a single device.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Low-entropy arrays of atomic quantum systems in optical tweezers offer unique prospects for fundamental research on few- and many-body systems as well as for extended applications in quantum technology. The significance of this approach relies on the achievable system size, its uniformity, and the rate of qubit allocation. We propel the neutral-atom quantum-technology platform by the rapid assembly of a regular two-dimensional quantum register of up to 1024 atomic qubits, enabled by a novel implementation of intensity-homogenized tweezer arrays and parallelized atom transport. Our highly efficient microoptical architecture modularizes intensity equalization and tweezer patterning in separate functional units, eliminating restrictions that arise for high-power, high-resolution, and large-scale light-field control within a single device. Arrays of precise grid structure, trap depth, and vibrational frequency with more than 3500 sites are demonstrated. Individual sites are interconnected by up to 50 parallelized transport tweezers with intensity and position control in real-time for swift qubit relocation. Multi-tweezer transport enables the operation of target patterns of up to 32 x 32 sites with sustained near-unity filling fraction. These results boost neutral-atom quantum information science above the kiloqubit level.

Related papers

• Optimal absorption and emission of itinerant fields into a spin ensemble memory [39.74150797598488]
  This work focuses on spin-based quantum memories, where itinerant electromagnetic fields are stored in large ensembles.<n>We develop a cascaded quantum model to describe both absorption and emission processes.<n> Numerical simulations are presented in the context of microwave-frequency quantum memories interfaced with superconducting quantum processors.
  arXiv  Detail & Related papers  (2025-06-06T14:16:54Z)
• Dual-type dual-element atom arrays for quantum information processing [4.576714355493591]
  We propose a novel quantum processing architecture based on dual-type, dual-element atom arrays.<n>We demonstrate ensemble-assisted quantum operations that enable reconfigurable, high-speed control of individual data qubits.<n>Our scheme supports individually addressable single- and multi-qubit operations with fidelities of 99.5% and 99.9%, respectively.
  arXiv  Detail & Related papers  (2025-03-21T07:00:35Z)
• 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)
• The SpinBus Architecture: Scaling Spin Qubits with Electron Shuttling [42.60602838972598]
  We introduce the SpinBus architecture, which uses electron shuttling to connect qubits and features low operating frequencies and enhanced qubit coherence. Control using room temperature instruments can plausibly support at least 144 qubits, but much larger numbers are conceivable with cryogenic control circuits.
  arXiv  Detail & Related papers  (2023-06-28T16:24:11Z)
• High-fidelity parallel entangling gates on a neutral atom quantum computer [41.74498230885008]
  We report the realization of two-qubit entangling gates with 99.5% fidelity on up to 60 atoms in parallel. These advances lay the groundwork for large-scale implementation of quantum algorithms, error-corrected circuits, and digital simulations.
  arXiv  Detail & Related papers  (2023-04-11T18:00:04Z)
• An integrated microwave-to-optics interface for scalable quantum computing [47.187609203210705]
  We present a new design for an integrated transducer based on a superconducting resonator coupled to a silicon photonic cavity. We experimentally demonstrate its unique performance and potential for simultaneously realizing all of the above conditions. Our device couples directly to a 50-Ohm transmission line and can easily be scaled to a large number of transducers on a single chip.
  arXiv  Detail & Related papers  (2022-10-27T18:05:01Z)
• Optimal quantum control via genetic algorithms for quantum state engineering in driven-resonator mediated networks [68.8204255655161]
  We employ a machine learning-enabled approach to quantum state engineering based on evolutionary algorithms. We consider a network of qubits -- encoded in the states of artificial atoms with no direct coupling -- interacting via a common single-mode driven microwave resonator. We observe high quantum fidelities and resilience to noise, despite the algorithm being trained in the ideal noise-free setting.
  arXiv  Detail & Related papers  (2022-06-29T14:34:00Z)
• A quantum processor based on coherent transport of entangled atom arrays [44.62475518267084]
  We show a quantum processor with dynamic, nonlocal connectivity, in which entangled qubits are coherently transported in a highly parallel manner. We use this architecture to realize programmable generation of entangled graph states such as cluster states and a 7-qubit Steane code state.
  arXiv  Detail & Related papers  (2021-12-07T19:00:00Z)
• Location qubits in a multi-quantum-dot system [0.0]
  We introduce novel location qubits, describe a method to construct a universal set of all-optical quantum gates, and simulate their performance in realistic structures. Our results show that location qubits can maintain coherence 5 orders of magnitude longer than single-qubit operation time, and single-qubit gate errors do not exceed 0.01%.
  arXiv  Detail & Related papers  (2021-07-13T10:00:16Z)
• Multiplexed telecom-band quantum networking with atom arrays in optical cavities [0.3499870393443268]
  We propose a platform for quantum processors comprising neutral atom arrays with telecom-band photons in a multiplexed network architecture. The use of a large atom array instead of a single atom mitigates the deleterious effects of two-way communication and improves the entanglement rate between two nodes by nearly two orders of magnitude.
  arXiv  Detail & Related papers  (2021-07-09T15:05:57Z)
• Quantum Phases of Matter on a 256-Atom Programmable Quantum Simulator [41.74498230885008]
  We demonstrate a programmable quantum simulator based on deterministically prepared two-dimensional arrays of neutral atoms. We benchmark the system by creating and characterizing high-fidelity antiferromagnetically ordered states. We then create and study several new quantum phases that arise from the interplay between interactions and coherent laser excitation.
  arXiv  Detail & Related papers  (2020-12-22T19:00:04Z)
• Defect-free assembly of 2D clusters of more than 100 single-atom quantum systems [0.0]
  We build on a micro-optical architecture that provides thousands of sites for single-atom quantum systems. We implement repeated target pattern reconstruction after atom loss and deterministic transport of partial atom clusters. This technique will propel assembled-atom architectures beyond the threshold of quantum advantage.
  arXiv  Detail & Related papers  (2019-02-01T11:42:30Z)

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.