Artículos de revistas
Measuring work and heat in ultracold quantum gases
Fecha
2015-03Registro en:
De Chiara, Gabriele; Roncaglia, Augusto Jose; Paz, Juan Pablo; Measuring work and heat in ultracold quantum gases; IOP Publishing; New Journal of Physics; 17; 5; 3-2015; 4604-5920
1367-2630
CONICET Digital
CONICET
Autor
De Chiara, Gabriele
Roncaglia, Augusto Jose
Paz, Juan Pablo
Resumen
We propose a feasible experimental scheme to direct measure heat and work in cold atomic setups. The method is based on a recent proposal which shows that work is a positive operator valued measure (POVM). In the present contribution, we demonstrate that the interaction between the atoms and the light polarization of a probe laser allows us to implement such POVM. In this way the work done on or extracted from the atoms after a given process is encoded in the light quadrature that can be measured with a standard homodyne detection. The protocol allows one to verify fluctuation theorems and study properties of the non-unitary dynamics of a given thermodynamic process.