“Anomalous” heat flow, which at first appears to violate the second law of thermodynamics, gives physicists a way to detect quantum entanglement without destroying it.
If theres one law of physics that seems easy to grasp, its the second law of thermodynamics: Heat flows spontaneously from hotter bodies to colder ones. But now, gently and almost casually, Alexssand… [+8975 chars]
Read more: https://www.quantamagazine.org/a-thermometer-for-measuring-quantumness-20251001/
Source: Quanta Magazine
