Quantum Art, an Israeli developer of full-stack fault-tolerant quantum computers, announced research results validating that its multi-qubit gate architecture supports a scalable path toward fault-tolerant quantum computing. The findings, published in a paper titled "Trapped-Ion Multi qubit Gates are Compatible with Scalable Quantum Error Correction," demonstrate that multi-qubit gates can achieve a finite fault-tolerance threshold at the 1% level using surface codes, a key milestone for building large-scale quantum systems.
Dr. Amit Ben-Kish, CTO and co-founder of Quantum Art, emphasized the significance of the results. "The most important result is that multi-qubit gates, favorable candidates for large scale quantum computation schemes, are also fully compatible and advantageous for fault tolerant codes," he said. "For years, the quantum computing industry has largely focused on fault-tolerant systems built from vast numbers of sequential one- and two-qubit operations, leaving open questions about whether large multi-qubit gates could support the same path. Our analysis shows that the errors remain local and controlled, and that a practical threshold exists."
The research involved constructing a detailed microscopic noise model for multi-qubit gates and analyzing their performance in scalable error correction codes. The results showed that logical error correction continues to improve as the system scales, a critical benchmark for fault-tolerant operation. Importantly, the dominant noise sources were found to be largely describable as effective single- and two-qubit error channels aligned with the gate's connectivity mapping, while unwanted long-range error propagation remained significantly weaker.
Quantum Art's multi-qubit gate architecture offers advantages in computational efficiency, circuit compression, system scalability, and overall hardware footprint. The findings provide strong evidence that the architecture can scale while remaining compatible with fault-tolerant quantum computing requirements. The company's roadmap includes the Perspective platform, a 1,000-qubit multi-core quantum computer targeting commercially relevant applications with tens to hundreds of logical qubits, and the next-generation Landscape series for thousands of logical qubits.
The paper is authored by O. Grossman, Y. Kadish, S. Gazit, A. Ben-Kish, R. Ozeri, and Y. Shapira and is available here. Quantum Art was founded in 2022 as a spin-out from Prof. Roee Ozeri’s research group at the Weizmann Institute of Science. The company focuses on trapped-ion quantum computing systems for optimization, simulation, and advanced computing.
