What if quantum processors could be tested before they are fully built? An indigenous resonator chip is helping validate the hardware path.
Srsti Quantum has developed NAADA, a superconducting resonator chip, to validate signal paths, test materials and fabrication processes before they are used in quantum processors. The chip is being developed locally at Machilipatnam as part of Andhra Pradesh’s Amaravati Quantum Valley initiative.
Unlike a quantum processor itself, a resonator chip can help engineers characterise parts of the hardware stack that a processor will depend on. This makes testing signal paths, materials, and fabrication an important step before moving to more complex quantum processors.
NAADA forms part of Q-Shiva, a cryogenic integration and testing platform developed by Qbit Force. The system provides the low-temperature environment required to integrate and test quantum chips, sensors, microwave circuits, and materials. It operates below 4K, or about -269°C, and has around 100 signal lines operating up to 20 GHz. It can also accommodate up to 10 devices in a single load.
The combination of the resonator chip and cryogenic test platform addresses a practical challenge in superconducting quantum hardware: components need to be characterised under the extreme conditions in which they are expected to operate. NAADA therefore sits closer to the validation and measurement stage of the hardware development chain than to the final computing stage.
The broader indigenous programme has already developed a 10-qubit superconducting processor and is targeting systems with more than 500 qubits by 2028. Q-Shiva systems are also being deployed to universities, extending access to cryogenic quantum hardware testing.
The development points to a shift from simply accessing quantum computers towards building the supporting hardware needed to design, test, and eventually scale them domestically.
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