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Internal Dissipation and Heat Leaks in Quantum Thermodynamic Cycles by Luis A. Correa; José P. Palao; Daniel Alonso is a Physics and Astronomy article available to read on EtoBox.

What is Internal Dissipation and Heat Leaks in Quantum Thermodynamic Cycles about?

The direction of the steady-state heat currents across a generic quantum system connected to multiple baths may be engineered to realize virtually any thermodynamic cycle. In spite of their versatility, such continuous energy-conversion systems are generally unable to operate at maximum efficiency due to non-negligible sources of irreversible entropy production. In this paper we introduce a minimal model of irreversible absorption chiller. We identify and characterize the different mechanisms responsible for its irreversibility, namely heat leaks and internal dissipation, and gauge their relative impact in the overall cooling performance. We also propose reservoir engineering techniques to minimize these detrimental effects. Finally, by looking into a known three-qubit embodiment of the absorption cooling cycle, we illustrate how our simple model may help to pinpoint the different sources of irreversibility naturally arising in more complex practical heat devices.

Who reads Internal Dissipation and Heat Leaks in Quantum Thermodynamic Cycles?

Author

Luis A. Correa; José P. Palao; Daniel Alonso

Publisher

The American Physical Society; American Physical Society; American Physical Society (APS) (ISSN 1063-651X)

Published

2015

Language

EN

Field

Physics and Astronomy (Physical Sciences)