Thermodynamics
Researchers at the University of Stuttgart have shown that the Carnot principle, a cornerstone of thermodynamics, does not fully hold for correlated particles at the atomic level. Their work reveals that quantum engines can surpass the traditional efficiency limit by harnessing quantum correlations. This discovery could pave the way for highly efficient nanoscale motors.
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Researchers at TU Wien have developed a quantum system using ultracold rubidium atoms that allows energy and mass to flow with perfect efficiency, defying usual resistance. Confined to a single line, the atoms collide endlessly without slowing down, mimicking a Newton's cradle. The discovery, published in Science, highlights a novel form of transport in quantum gases.