Experimental signature of initial quantum coherence on entropy production
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2023-09-11 |
| Journal | npj Quantum Information |
| Authors | Santiago HernĆ”ndez-GĆ³mez, Stefano Gherardini, Alessio Belenchia, Andrea Trombettoni, Mauro Paternostro |
| Institutions | University of Trieste, University of Florence |
| Citations | 16 |
Abstract
Section titled āAbstractāAbstract We report on the experimental quantification of the contribution to non-equilibrium entropy production stemming from the quantum coherence content in the initial state of a qubit exposed to both coherent driving and dissipation. Our experimental demonstration builds on the exquisite experimental control of the spin state of a nitrogen-vacancy defect in diamond and is underpinned, theoretically, by the formulation of a generalized fluctuation theorem designed to track the effects of quantum coherence. Our results provide significant evidence of the possibility to pinpoint the genuinely quantum mechanical contributions to the thermodynamics of non-equilibrium quantum processes in an open quantum systems scenario.