A New Way To Cool Quantum Computers Could Change How They’re Built
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JunggooLee on February 14, 2026 6:46 am B Memo 2602141138_Source 1. Reinterpretation [] Source 1. https://scitechdaily.com/a-new-way-to-cool-quantum-computers-could-change-how-theyre-built/ 1. A New Way to Cool Quantum Computers Could Transform the Way They Design Them Researchers have developed a quantum refrigerator that can operate as a cooler, heat engine, or amplifier using controlled microwave noise. This approach offers a new way to directly manage heat within quantum circuits. 1-2. Quantum technology has the potential to revolutionize key areas of society, including drug discovery, artificial intelligence, logistics, and secure communications. However, despite this potential, major engineering challenges still exist that hinder practical applications. One of the most significant challenges is controlling the highly sensitive quantum states that form the basis of quantum computing. 1-3. Superconducting quantum computers take this challenge to the extreme. To function properly, they must be cooled to temperatures close to absolute zero (approximately -273°C). At these ultra-low temperatures, electrical resistance disappears, electrons flow freely, and qubits can stably form quantum states that convey information. However, the problem is that qubits can lose information instantly if exposed to even slight temperature fluctuations, unwanted electromagnetic signals, or everyday background noise. 2. Scalability and Thermal Issues Quantum computers require significantly more qubits to solve practical problems, but as devices grow larger, it becomes more difficult to maintain a uniform noise and noise distribution. As circuits become larger, there are more paths for heat and noise to propagate, increasing the risk of quantum information loss. “Many quantum devices are ultimately limited by how energy is transferred and dissipated. Understanding and measuring these pathways could allow us to design quantum devices that can predict, control, and even exploit heat flow,” says Simon Sundelin, a PhD student in quantum technology at Chalmers University of Technology and lead author of the study. 2-1. Cooling with Noise In a study published in Nature Communications, a Chalmers University research team reported developing a “minimal” quantum refrigerator that reverses conventional strategies. Instead of focusing all efforts on noise suppression, as is typical, they use controlled noise to predictably induce heat transfer. -b1. [Controlled noise is like an artificial molecule in a superconducting circuit… makes sense!! Hehe. 1132.] 2-2. Physicists have long speculated about a phenomenon called Brownian cooling, the idea that random thermal fluctuations can be used to produce a cooling effect. ㅡa1.【 In the graphic of particle path movement within example1.msbase4., it seems that natural molecular Brownian motion can also be interpreted as the concept of Brownian cooling. Hehe. 2602141101. exemple1. 01100716 15080902 14051203 04110613 ㅡIf the unit of Brownian motion here is an artificial molecule and a superconducting circuit, >>(_The molecule mimics the behavior of natural molecules, but is composed of microscopic superconducting circuits rather than atoms.) ㅡIt’s reminiscent of example1.msbase4.power, and its units are reminiscent of superconducting example1. This suggests infinite potential. had. exemple2. 01000000>vixer.a3 00000100> 00000001 Precise Thermal Control at the Microscale "The two microwave channels function as hot and cold heat sources, respectively, but the key is that these two heat sources are effectively connected only when controlled noise is injected through the third port. The injected noise enables and accelerates heat transfer between the heat sources via artificial molecules. We were able to measure extremely small heat flows on the order of attowatts, or 10⁻¹⁸ watts. If a single droplet were heated by such a small heat flow, it would take the age of the universe for the droplet's temperature to rise by 1 degree Celsius," explains Sundelin. -a2.【Example1.Power entangled susquencial travels 100 billion light-years in an instant, faster than light, meaning that 'the temperature did not rise from absolute zero to 1 Kelvin at all.'" This may seem like an absurd hyperbole, but the theory explained in examples 1.2. is completely correct. Haha. 2602141126.30. 3-1. _This device can control the temperature of the reservoir and track minute heat flows, allowing it to switch between various operating modes, such as a refrigerator, a heat engine, or a heat transfer amplifier. _This flexibility is crucial for large-scale quantum processors, where the hottest parts often occur not at the edge of the cryogenic vessel, but right where the qubits are controlled and measured. 3-2. _"We believe this research represents a significant advance in directly controlling heat within quantum circuits at scales unattainable by conventional cooling systems. _The ability to remove or redirect heat at such a microscopic scale will enable more reliable and robust quantum technologies," said Amir Ali, a researcher in quantum technologies at Chalmers University of Technology and co-author of the study.