Experimental Determination of Irreversible Entropy Production in out-of-Equilibrium Mesoscopic Quantum Systems
Artikel i vetenskaplig tidskrift, 2018
By making use of a recently proposed framework for the inference of thermodynamic irreversibility in bosonic quantum systems, we experimentally measure and characterize the entropy production rates in the nonequilibrium steady state of two different physical systems a micromechanical resonator and a Bose-Einstein condensate each coupled to a high finesse cavity and hence also subject to optical loss. Key features of our setups, such as the cooling of the mechanical resonator and signatures of a structural quantum phase transition in the condensate, are reflected in the entropy production rates. Our work demonstrates the possibility to explore irreversibility in driven mesoscopic quantum systems and paves the way to a systematic experimental assessment of entropy production beyond the microscopic limit.
Micromechanical resonators
Superconducting materials
Bose-Einstein condensation
Phase transitions
Statistical mechanics
Quantum optics
Författare
M. Brunelli
University of Cambridge
L. Fusco
Queen's University Belfast
R. Landig
Eidgenössische Technische Hochschule Zürich (ETH)
Harvard University
Witlef Wieczorek
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Chalmers, Mikroteknologi och nanovetenskap
J. Hoelscher-Obermaier
Universität Wien
Leibniz Universität Hannover
C. Landi
Universidade de Sao Paulo (USP)
F. L. Semiao
Universidade Federal do ABC
A. Ferraro
Queen's University Belfast
N. Kiesel
Universität Wien
T. Donner
Eidgenössische Technische Hochschule Zürich (ETH)
G. De Chiara
Queen's University Belfast
M. Paternostro
Queen's University Belfast
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 121 16 160604Styrkeområden
Nanovetenskap och nanoteknik (SO 2010-2017, EI 2018-)
Ämneskategorier
Annan fysik
Den kondenserade materiens fysik
DOI
10.1103/PhysRevLett.121.160604
PubMed
30387649