Carnot theorem for quantum nano-engines

26 days ago by

“Minuscule heat engine brings power to the nano-world” says Nature Applied Physics.

In a review of an article, Josefsson et al., “A quantum-dot heat engine operating close to the thermodynamic efficiency limits”, Nature Nano. (2018) <arXiv:1710.00742>, it is stated that

“To make a nanoscale heat engine ... [they created] a system called a quantum dot. Electrons were driven between the hot and cold metallic contacts, generating a small amount of electric power. The engine operated at efficiencies on a par with conventional heat engines.”

A very important question here: Does Carnot theorem applies to such quantum nano-engines?

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