Joint ICTP/SISSA Statistical Physics seminar: "Nonequilibrium fluctuations in quantum heat engines: Theory, example, and possible solid state experiments"
Starts 29 Jan 2015 14:00
Ends 29 Jan 2015 15:00
Central European Time
SISSA, Santorio Building
Room 005 (ground floor)
Via Bonomea 265, Trieste
Abstract
We study the 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 larger 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) is 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.