Quantum Art, a developer of full-stack, fault-tolerant quantum computers based on trapped-ion qubits, announced research results verifying that its multi-qubit gate architecture advances scalable 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 are fully compatible with quantum error correction, a critical step toward building large-scale quantum computers.
The company constructed realistic noise models for multi-qubit gates and analyzed their performance in scalable error correction codes. The results show a finite-threshold behavior at the 1% level using surface codes, suitable for scalable fault-tolerant quantum computing. Importantly, the simulation results showed that logical error correction continues to improve as the system scales, a key benchmark for fault-tolerant operation.
"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," said Dr. Amit Ben-Kish, CTO and co-founder of Quantum Art. "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. That puts multi-qubit gates firmly in the fault-tolerant regime and provides a clear path for scaling such architectures."
Quantum Art's multi-qubit gate architecture offers significant advantages in computational efficiency, circuit compression, system scalability, and overall hardware footprint. The findings show that while all-to-all connected multi-qubit gates enable circuit depth compression and reduced computational overhead by orders of magnitude, error propagation remains small, controlled, and bound by the gate's connectivity mapping.
The milestone validates Quantum Art's roadmap toward large-scale fault-tolerant systems, including its planned Perspective platform, a 1,000-qubit multi-core quantum computer designed to support commercially relevant quantum applications having 10s-100 logical qubits, as well as next-generation Landscape series supporting 1000s logical qubits. The paper is available here.
For business and technology leaders, this development signals that multi-qubit gate architectures could accelerate the timeline for practical quantum computing. By reducing the need for vast numbers of sequential one- and two-qubit operations, the approach may lower hardware costs and improve computational efficiency for applications in optimization, simulation, and advanced computing. Quantum Art's results provide a bridge between device-level physics and quantum error-correction performance, addressing a key uncertainty in the field.
Quantum Art, an Israeli company founded in 2022 and spun out from Prof. Roee Ozeri’s research group at the Weizmann Institute of Science, is a full-stack, fault-tolerant, trapped-ion quantum computing company. Its architecture combines scalable hardware with software designed for real-world applications.
