In classical physics, anything driven hard enough will eventually heat up, lose coherence, and settle into disorder. A new ...

Physicists have long relied on the idea that electrons behave like tiny particles zipping through materials, even though ...

A team of physicists has created a cloud of ultracold atoms that stubbornly resists the most basic rule of everyday experience: when you pump energy into something, it heats up. Instead, this quantum ...

Researchers at TU Wien have discovered a quantum system where energy and mass move with perfect efficiency. In an ultracold ...

Heat always spontaneously flows from a hotter place to a colder one – so says the second law of thermodynamics. But within an extremely sparse gas, the opposite may be possible, with heat flowing from ...