345 citations · 1.9k across the 34 of their papers we have counts for
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Carnot Cycle at Finite Power: Attainability of Maximal Efficiency
Armen E. Allahverdyan, Karen V. Hovhannisyan, Alexey V. Melkikh +1
We want to understand whether and to which extent the maximal (Carnot) efficiency for heat engines can be reached at a finite power. To this end we generalize the Carnot cycle so t…
Entanglement Generation is Not Necessary for Optimal Work Extraction
Karen V. Hovhannisyan, Martí Perarnau-Llobet, Marcus Huber +1
We consider reversible work extraction from identical quantum batteries. From an ensemble of individually passive states, work can be produced only via global unitary (and thus ent…
Comment on "Cooling by Heating: Refrigerator Powered by Photons"
Armen E. Allahverdyan, Karen V. Hovhannisyan, Guenter Mahler
Results obtained recently in Phys. Rev. Lett. 108, 120603 (2012) by Cleuren et al. apparently contradict to the third law of thermodynamics. We discuss a scenario for resolving thi…