Bangalore, Karnataka, India, MARCH 25, 2026 -- QpiAI, a leading global provider of integrated AI and quantum solutions, today announced a major breakthrough in the development of utility-scale quantum systems. The company has successfully demonstrated high-speed quantum error correction (QEC) on its superconducting quantum processors using a newly developed, high-performance decoder platform.

A scalable quantum error correction system has been developed by QpiAI to enable fast, scalable error correction using a rotated surface code architecture. The decoder, based on a union-find algorithm, is designed to operate in real time alongside superconducting qubits and represents a key step toward practical fault-tolerant quantum computing.

"The design of QpiAI QEC for 64 qubit Kaveri QPU is a promising development towards large scale Quantum computing deployment. With this setup we would like to prove Error correction and reduction in errors possible and eventually lead to fault tolerant Quantum computing." — Dr. Nagendra Nagaraja, Founder and CEO, QpiAI

The system implements a distance-5 rotated surface code using 49 physical qubits. While current state-of-the-art QEC decoders for distance 5 surface codes run at 60 microsecond latency on CPUs and GPUs, QpiAI has achieved an end-to-end latency of just 1.5 microseconds and decoder-only latency of less than 1 microsecond.

Significant Milestone for Indian National Quantum Mission

Indian NQM invested in QpiAI to design the 64-qubit Kaveri QPU. Dr. Abhay Karandikar, Secretary of the Department of Science and Technology (DST), commented: "Quantum Error Correction (QEC) is essential for scalable quantum computing. By implementing distance 5 surface code QEC in custom hardware rather than traditional CPUs, QpiAI is accelerating the deployment of its 64-qubit Kaveri QPU in India, marking a major step toward practical, large-scale quantum utility."

Technical Specifications

• Cycle Time: ~1.5 microseconds per error-correction cycle.
• Robustness: Performs five rounds of stabilizer measurements per cycle to account for measurement errors.
• Coherence: Qubit coherence times in 64-qubit Kaveri show T1 ~100μs and T2 ~95μs.
• Hardware: Compact hardware decoder completing decoding in max 40 clock cycles.