Experiment reverses the direction of heat flow

[MikeeMiracle]

TL;DR Summary

Experiment reverses the direction of heat flow

I hope this is the correct section to post this but I found it very is interesting

Link to original article: https://phys.org/news/2019-06-reverses.html

Quotes from the article:

"We investigated temperature changes in the spins of the nuclei of the hydrogen and carbon atoms. The chlorine atoms had no material role in the experiment. We used radio frequency pulses to place the spin of each nucleus at a different temperature, one cooler, another warmer. The temperature differences were small, on the order of tens of billionths of 1 Kelvin, but we now have techniques that enable us to manipulate and measure quantum systems with extreme precision. In this case, we measured the radio frequency fluctuations produced by the atomic nuclei," Serra said.

The researchers explored two situations: in one, the hydrogen and carbon nuclei began the process uncorrelated, and in the other, they were initially quantum-correlated.

"In the first case, with the nuclei uncorrelated, we observed heat flowing in the usual direction, from hot to cold, until both nuclei were at the same temperature. In the second, with the nuclei initially correlated, we observed heat flowing in the opposite direction, from cold to hot. The effect lasted a few thousandths of a second, until the initial correlation was consumed,"

 

[eljose79]

Thank you for sharing this interesting article about temperature reversals in atomic nuclei. I find this research to be very intriguing and promising for future advancements in understanding quantum systems.

The use of radio frequency pulses to manipulate and measure the temperature changes in the nuclei of hydrogen and carbon atoms is a significant development in studying quantum systems with extreme precision. The fact that the researchers were able to observe heat flowing in the opposite direction, from cold to hot, in situations where the nuclei were initially correlated, is a groundbreaking finding.

This research has the potential to greatly impact our understanding of heat transfer and thermodynamics at the atomic level. It also opens up new possibilities for studying and controlling quantum systems in a more precise and controlled manner.

I look forward to seeing further developments in this area of research and the potential applications that may arise from it. Thank you for sharing this article and bringing attention to this fascinating topic.