Particle.news

Infleqtion Demonstrates 30 Entangled Logical Qubits on Commercial Neutral‑Atom System

A lower physical‑to‑logical qubit ratio could reduce hardware costs for fault‑tolerant quantum computing.

Overview

  • Infleqtion disclosed Thursday that its Sqale system produced 30 entangled logical qubits using 80 physical qubits on a commercial machine, executing an IQP circuit of about 1,000 physical operations with a signal the company said was roughly 1,000 times above background noise.
  • The company credits the result to full hardware–software co‑design, real‑time AI‑assisted gate and decoder tuning, and integration of NVIDIA’s CUDA‑Q Logical framework with the qLDPC error‑correction library.
  • Sqale hardware is already in external use, including a 100‑physical‑qubit unit at the UK’s National Quantum Computing Centre, and Infleqtion says three customers are running logical‑qubit circuits, among them Wellcome Leap’s Q4Bio program.
  • Infleqtion is positioning the milestone as validation of its roadmap to reach 100 logical qubits by 2028 and more than 1,000 by 2030 while reporting strong Q2 2026 revenue growth of $13.5 million, raised full‑year guidance to about $45.1 million, and filing a Form 12b‑25 to revise revenue timing without changing cash flow.
  • Logical qubits bundle many noisy physical qubits into error‑protected units, and using qLDPC codes on reconfigurable neutral‑atom arrays aims to cut the large physical‑qubit overhead that has long been seen as the main barrier to practical, fault‑tolerant quantum machines.