RQC Colloquium

36th RQC Colloquium

• Speaker

  Dr. Thomas Noel
  (Infleqtion)

• Date

  11:00-12:00 (JST), July 23, 2025 (Wednesday)

• Venue

  Hybrid (Zoom・Wako C32 Okochi Hall, 1F Laser Science Laboratory)

• Title

  Benchmarking and Fault-Tolerant Operation of a Neutral Atom Quantum Processor

• Inquiries

  rqc_colloquium_inquiry[at]ml.riken.jp

• Registration Form

  https://krs2.riken.jp/m/rqc_registration_form

Abstract
Neutral atoms have emerged as a strong candidate for scalable, fault-tolerant quantum computing. A popular approach for neutral atom gates involves shuttling atoms to and froma shared interaction zone.While atomshuttling enables parallel execution ofmultiple gates, local qubit addressing comes with distinct advantages, such as faster overall execution speed and the ability to perform non-identical gates in parallel. We present benchmarking results from a full-stack universal quantum computing architecture featuring individual optical addressing of single atoms for fast gate execution without the requirement for atom shuttling. We demonstrate reduction in computational error by encoding physical qubits into logical qubits using the [[4,2,2]] quantum-error-detecting codewhere performance is evaluated by executing a variety of quantum circuits with and without logical encoding. We show that logical performance surpasses physical performance for Bell state generation (12x error reduction), Gottesman random circuits (15x), and an Anderson ImpurityModel ground state solver formaterials science applications (up to 6x). Finally, we present preliminary results on scaling to larger qubit arrays and implementing more complex quantum error correction codes, laying the groundwork for larger, fault-tolerant systems.
Flyer: 36th RQC Colloquium Flyer