University of Basel creates the lowest temperature in the world, approaching absolute zero!
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From the internet! ! ! ! ! ! ! ! ! ! ! Latest technological breakthrough: According to official news from the University of Basel in Switzerland, a team of researchers from the university’s physics department has successfully developed a super-electronic chip that can bring temperatures close to absolute zero, reducing them to 2.8 millikelvin (2.8 millikelvin = 0.0028 K), thus setting a new world record for the lowest temperature ever achieved. This significant scientific achievement was recently published in the journal Applied Physics Letters. Scientists at the University of Basel utilized the principle of magnetic cooling, through nanoelectronic chips, to achieve an unprecedentedly low temperature close to absolute zero – a record low of 2.8 millikelvin (mK). Moreover, the chip can maintain a low temperature for up to 7 hours.
Absolute zero is the temperature of a substance at which the kinetic energy of particles reaches its lowest point. Conversely, the higher the particle kinetic energy, the higher the temperature of the material. Theoretically, when a particle’s kinetic energy reaches the minimum level permitted by quantum mechanics, the material reaches absolute zero temperature, and it cannot go any lower. According to the second law of thermodynamics, absolute zero can never be reached; it can only be approached infinitely closely. Because any space necessarily contains energy and heat, they continuously exchange with each other and cannot disappear. Therefore, absolute zero does not exist, unless there is no energy or heat in that space from the very beginning, which is impossible. This is because even as temperatures approach absolute zero, the physical properties of various materials begin to undergo significant and unusual changes; many of these properties hold considerable value for scientific research. For example, ultra-cold infrared radiation space telescopes, advanced medical imaging technologies, quantum computers, and so on all require an ultra-cold environment in order to meet the stringent requirements of such technical devices. Reducing it from 2.8 mK to 1 mK (0.001 K) is the next goal for applied physicists at the University of Basel.
Materials for near-absolute zero will surely be developed soon
Materials for near-absolute zero will surely be developed soon
Absolute zero is the lowest temperature known to humanity at present (the lower limit), at which point molecular motion ceases. We are now very close to this temperature; I look forward to new discoveries by scientists!
It is estimated that relevant research will follow soon