A New Approach to 'Measurement,' the Bottleneck of Quantum Computing

Quemix, a subsidiary of TerraSky specializing in quantum algorithm and software R&D, and SCSK Corporation have developed 'POD Readout,' a new technology that resolves the 'readout (measurement)' bottleneck hindering the practical application of quantum computers. This technology is based on the concept of directly extracting only the information essential to the solution, rather than reading all the vast calculation results produced by the quantum computer. This reduces the number of measurements by up to 1/1000, paving the way for practical simulations in industrial fields such as manufacturing, materials, and finance without compromising the high-speed nature of quantum computing.

Advanced simulations are essential in modern society for goals like achieving carbon neutrality by 2050 and managing financial market risks. However, as the scale and precision of these simulations increase, the computational load grows exponentially, pushing traditional computers to their limits. While expectations for quantum computers are rising, the massive cost of 'readout' after calculation has been a major hurdle.

Since their capital and business alliance in 2024, Quemix and SCSK have been conducting joint research. The new 'POD Readout' technology embeds POD bases, constructed via classical computation, into quantum circuits to directly extract only key features from the quantum state. This enables efficient reconstruction without sacrificing the speed of quantum computation. The technology is currently patent-pending.

Moving forward, the companies will pursue research into generalization performance to enable high-precision readout even for unknown bases, and plan to present their findings at the international conference 'Q2B 2026 Tokyo,' to be held on June 4-5, 2026.