| year |
2015 |
| author(s) |
M. Campisi, J. Pekola, R. Fazio |
| title |
Nonequilibrium fluctuations in quantum heat engines: Theory, example, and possible solid state experiments |
| document type |
Paper |
| source |
new journal of physics 17 , 1-14 |
| doi |
10.1088/1367-2630/17/3/035012
|
| EMP/Horizon2020 |
This publication does not include a EMP/Horizon2020 acknowledgement. |
| 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. |
