Quantum computers need to operate at temperatures very close to absolute zero to keep the qubits stable. However, the electronic components used in these systems, especially signal amplifiers, generate significant heat during operation. This heat loss puts increasing pressure on the cooling systems and is considered one of the main obstacles in the path of miniaturization, cost reduction and improvement of the scalability of quantum systems. The unfavorable performance of common amplifiers in ultra-cold environments also exacerbates this limitation.

In response to this challenge, Qubic has developed a very small cryogenic amplifier based on the “parametric waveguide amplifier” technology, which provides the ability to amplify the signal with near-zero heat loss. This device uses advanced materials that enable stable operation at very low temperatures and reduces heat generation by ten thousand times compared to conventional amplifiers.

The application of this technology can significantly reduce the dependence of quantum computers on complex and expensive cooling systems and pave the way for the development of smaller, less energy-efficient and commercializable architectures. Also, the significant reduction of the generated heat leads to the improvement of the stability of the qubits and the improvement of the signal quality. According to the manufacturer’s announcement, this device will enter the market in 2026 and can be one of the key elements in the next generation of industrial quantum computing.

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