2021-10-16

Scientists have just broken the lowest temperature record ever recorded in the laboratory

By yqqlm yqqlm

Temperature is a measure of the average translational kinetic energy between molecules: the more intense the molecular motion, the higher the temperature, and absolute zero is the critical point at which all molecular motions stop, that is, minus 273.15 degrees Celsius. Near absolute zero, matter tends to become a little incredible. According to a study published in the journal Nature Physics in 2017, near absolute zero, light becomes a liquid that can be poured into a container. A study published in the journal Nature communications in the same year also showed that supercooled helium stopped moving at very low temperatures

Scientists have just broken the lowest temperature record ever recorded in the laboratory

in the latest experiment, scientists captured an atomic cloud composed of about 100000 gaseous rubidium atoms in the magnetic field in the vacuum chamber, and cooled the temperature of the vacuum chamber to 2 billion degrees Celsius above absolute zero. But for researchers who want to challenge the limits of physics, this temperature is not enough. In order to obtain lower temperature, they need to simulate the deep space environment, and finally achieve this initiative at the microgravity research center of the University of Bremen in Germany. The atomic cloud under BEC maintained for about 2 seconds at 38 trillion Kelvin. The results of this study were published in Physical Review Letters

the researchers say that in theory, this temperature can be maintained for up to 17 seconds under the condition of real weightlessness. MIT researchers say that ultra-low temperature may one day help scientists build better quantum computers

the coldest known place in the universe is the Boomerang Nebula, which is about 5000 light-years away from the earth. According to the European Space Agency, the average temperature of the nebula is minus 272 degrees Celsius