Nonequilibrium fluctuations in quantum heat engines: Theory, example, and possible solid state experiments

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2015-03-20
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en
Pages
14
1-14
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NEW JOURNAL OF PHYSICS, Volume 17
Abstract
We study stochastic energetic exchanges in quantum heat engines. Due to microreversibility, these obey a fluctuation relation, called the heat engine fluctuation relation, which implies the Carnot bound: no machine can have an efficiency greater than Carnot's efficiency. The stochastic thermodynamics of a quantum heat engine (including the joint statistics of heat and work and the statistics of efficiency) are illustrated by means of an optimal two-qubit heat engine, where each qubit is coupled to a thermal bath and a two-qubit gate determines energy exchanges between the two qubits. We discuss possible solid-state implementations with Cooper-pair boxes and flux qubits, quantum gate operations, and fast calorimetric on-chip measurements of single stochastic events.
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VK: Low Temperature Laboratory
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Campisi , M , Pekola , J & Fazio , R 2015 , ' Nonequilibrium fluctuations in quantum heat engines: Theory, example, and possible solid state experiments ' , New Journal of Physics , vol. 17 , 035012 , pp. 1-14 . https://doi.org/10.1088/1367-2630/17/3/035012