Experimental Assessment of Entropy Production in a Continuously Measured Mechanical Resonator
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Experimental Assessment of Entropy Production in a Continuously Measured Mechanical Resonator. / Rossi, Massimiliano; Mancino, Luca; Landi, Gabriel T.; Paternostro, Mauro; mwh574, mwh574; Belenchia, Alessio.
In: Physical Review Letters, Vol. 125, No. 8, 080601, 19.08.2020.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Experimental Assessment of Entropy Production in a Continuously Measured Mechanical Resonator
AU - Rossi, Massimiliano
AU - Mancino, Luca
AU - Landi, Gabriel T.
AU - Paternostro, Mauro
AU - mwh574, mwh574
AU - Belenchia, Alessio
N1 - Hy Q
PY - 2020/8/19
Y1 - 2020/8/19
N2 - The information on a quantum process acquired through measurements plays a crucial role in the determination of its nonequilibrium thermodynamic properties. We report on the experimental inference of the stochastic entropy production rate for a continuously monitored mesoscopic quantum system. We consider an optomechanical system subjected to continuous displacement Gaussian measurements and characterize the entropy production rate of the individual trajectories followed by the system in its stochastic dynamics, employing a phase-space description in terms of the Wigner entropy. Owing to the specific regime of our experiment, we are able to single out the informational contribution to the entropy production arising from conditioning the state on the measurement outcomes. Our experiment embodies a significant step towards the demonstration of full-scale control of fundamental thermodynamic processes at the mesoscopic quantum scale.
AB - The information on a quantum process acquired through measurements plays a crucial role in the determination of its nonequilibrium thermodynamic properties. We report on the experimental inference of the stochastic entropy production rate for a continuously monitored mesoscopic quantum system. We consider an optomechanical system subjected to continuous displacement Gaussian measurements and characterize the entropy production rate of the individual trajectories followed by the system in its stochastic dynamics, employing a phase-space description in terms of the Wigner entropy. Owing to the specific regime of our experiment, we are able to single out the informational contribution to the entropy production arising from conditioning the state on the measurement outcomes. Our experiment embodies a significant step towards the demonstration of full-scale control of fundamental thermodynamic processes at the mesoscopic quantum scale.
KW - QUANTUM CONTROL
U2 - 10.1103/PhysRevLett.125.080601
DO - 10.1103/PhysRevLett.125.080601
M3 - Journal article
C2 - 32909766
VL - 125
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 8
M1 - 080601
ER -
ID: 247982390