2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/132022In a PRL [1], the authors claim to show that "the Clausius inequality can be violated, and that it is even possible to extract work from a thermal bath by cyclic variations of a parameter ("perpetuum mobile"), and that the physical cause for this behavior is traced back to quantum coherence in the presence of the nonequilibrium bath (sic)".1 pageQuantum Physicstext