Tomi Ruokola, Teemu Ojanen
We introduce a new class of mesoscopic heat engines consisting of a tunnel
junction coupled to a linear thermal bath. Work is produced by transporting
electrons up against a voltage bias like in ordinary thermoelectrics but heat
is transferred by microwave photons, allowing the heat bath to be widely
separated from the electron system. A simple and generic formalism capable of
treating a variety of different types of junctions and environments is
presented. We identify the systems and conditions required for maximal
efficiency and maximal power. Very high figures of merit and efficiencies above
the Curzon-Ahlborn limit are achievable.
View original:
http://arxiv.org/abs/1202.3911
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