Renyi entropy flows from quantum heat engines
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We evaluate Renyi entropy flows from generic quantum heat engines
(QHE) to a weakly-coupled probe environment kept in thermal equilibrium. We show
the flows are determined by two quantities: heat flow and fictitious dissipation
that manifest the quantum coherence in the engine. This pertains also the common
Shanon entropy flow. The results appeal for revision of the concept of entropy
flows in quantum non-equilibrium thermodynamics.