Researchers could develop small devices that will wipe out one of the largest heat sources of quantum computers, reducing running costs and bringing these machines closer to commercial realities.
Most quantum computers use specialized cooling devices to operate at temperatures close to absolute zero (459.67 degrees Fahrenheit, or minus 273.15 degrees Celsius) and maintain the delicate quantum state of the qubit.
Cryogenic amplifiers are also used in quantum computers to increase the very weak signals Qubits emitted at these ultra-cold temperatures. This allows you to accurately measure the quantum states needed to understand what quantum computers are actually doing.
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The challenges of existing amplifiers are used to measure qubit operation, or electronics used in quantum computers. This is to generate heat. This means that quantum systems require additional cooling systems that add bulk and cost.
Now, Canadian startup Qubic has devised a cryogenic mobile wave parametric amplifier (TWPA) made from unspecified “quantum materials” that allow the amplifier to operate with virtually zero heat loss, a company representative said in a statement.
They added that the device reduced the thermal power output by 10,000 times.
Related: Quantum computing, which exceeds absolute zero, is a huge deal
The company plans to bring the amplifier to the market in 2026.
“The quantum computing industry continues to advance rapidly, but technological barriers remain and we need to overcome these before the industry can provide utility-scale quantum computers,” said Bourassa, CEO and co-founder of Qubic Technologies. “This project generates a new type of amplifier that removes one of these important barriers.”
There has been a huge amount of research into how quantum computers can break through barriers to practicality. Scientists are also investigating quantum error correction (QEC) to reduce the error rates of Qubits and make them easier to use.
Some teams focus on innovation in cooling systems, from autonomous quantum refrigerators to cryogenic control chips, while others use optical or optical-based qubits that operate at room temperature and do not require complex cooling systems.
Next, there are more fundamental approaches like EthZürich’s, which developed completely mechanical qubits that completely avoid traditional quantum system designs.
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