Quantum-Heat Fluctuation Relations in Three-Level Systems Under Projective Measurements

• Published in: Condensed matter Vol. 5; no. 1; p. 17
• Main Authors: Giachetti, Guido, Gherardini, Stefano, Trombettoni, Andrea, Ruffo, Stefano
• Format: Journal Article
• Language: English
• Published: MDPI AG 01.03.2020
• Subjects: Analysis; fluctuation theorems; Fluctuations (Physics); Forecasts and trends; Heating; Measurement; nonequilibrium statistical mechanics; Quantum mechanics; quantum thermodynamics; Statistical mechanics; Italy

We study the statistics of energy fluctuations in a three-level quantum system subject to a sequence of projective quantum measurements. We check that, as expected, the quantum Jarzynski equality holds provided that the initial state is thermal. The latter condition is trivially satisfied for two-le...