Logical Qubit Technology Unveils Quantum Cloud Platform with 100-Qubit Superconducting AGate-100 Chip, Achieving 99.97% Single-Qubit Gate Fidelity

July 19, 2026

Logical Qubit Technology Unknown

Overview

Logical Qubit Technology Co., Ltd. launched its superconducting quantum computing cloud platform with its 100-qubit AGate-100 chip, achieving a maximum single-qubit gate fidelity of 99.97% and two-qubit gate fidelity of 99.8%. The company also reported a coherence time of 890 microseconds on a test chip and outlined a roadmap targeting fault-tolerant systems with modular logical qubits by the end of the decade.

In Depth

Key Findings

Logical Qubit Technology Co., Ltd. has officially launched its quantum computing cloud platform, powered by its 100-qubit superconducting AGate-100 chip. The company has demonstrated impressive performance metrics, achieving a maximum single-qubit gate fidelity of 99.97% and a two-qubit gate fidelity of 99.8%. Furthermore, a test chip exhibited a remarkable coherence time of 890 microseconds, with a clear roadmap articulated towards realizing fault-tolerant systems incorporating modular logical qubits by the end of the decade.

Technical / Clinical Details

The AGate-100 chip, built on superconducting qubit technology, represents a significant advancement in quantum hardware. The achieved single-qubit gate fidelity of 99.97% is among the world’s leading performances for modern quantum processors, approaching the critical threshold required for effective quantum error correction. The 99.8% two-qubit gate fidelity is also crucial for enabling complex quantum algorithms and enhancing the overall functionality and scalability of the quantum computer. The company’s roadmap outlines a strategic progression towards modular logical qubits, which are essential building blocks for constructing large-scale, fault-tolerant quantum systems capable of sustaining complex computations.

Background & Context

The quantum computing industry is intensely focused on both scaling the number of physical qubits and, critically, improving their quality (fidelity and coherence time). High gate fidelity is paramount as it directly reduces the error rate in quantum computations, thereby minimizing the physical qubit overhead required for practical error correction. Logical Qubit Technology’s achievements highlight the rapid technological progress being made in China within the superconducting qubit modality, reinforcing its competitive position in the global quantum race.

Strategic Significance & Outlook

The launch of Logical Qubit Technology’s cloud platform, coupled with its impressive performance metrics, signifies a tangible shift from quantum research to commercial deployment. If the company’s roadmap progresses as planned, it will accelerate the availability of practical quantum solutions for computationally intensive problems in areas such as financial modeling, drug discovery, materials science, and artificial intelligence. The successful development of modular logical qubits will be key to enabling the construction of quantum computers with thousands to millions of qubits, unlocking transformative capabilities that are currently beyond the reach of classical supercomputers.

Source: https://quantumcomputingreport.com/logical-qubit-technology-unveils-agate-quantum-cloud-platform-and-multi-year-roadmap/amp/

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