RT Journal Article
T1 Extracting Work Optimally with Imprecise Measurements
A1 Dinis Vizcaíno, Luis Ignacio
A1 Rodríguez Parrondo, Juan Manuel
AB Measurement and feedback allows for an external agent to extract work from a system in contact with a single thermal bath. The maximum amount of work that can be extracted in a single measurement and the corresponding feedback loop is given by the information that is acquired via the measurement, a result that manifests the close relation between information theory and stochastic thermodynamics. In this paper, we show how to reversibly confine a Brownian particle in an optical tweezer potential and then extract the corresponding increase of the free energy as work. By repeatedly tracking the position of the particle and modifying the potential accordingly, we can extract work optimally, even with a high degree of inaccuracy in the measurements.
PB Multidisciplinary Digital Publishing Institute
SN 1099-4300
YR 2020
FD 2020-12-23
LK https://hdl.handle.net/20.500.14352/8275
UL https://hdl.handle.net/20.500.14352/8275
LA eng
NO L.D. and J.M.R.P. acknowledge financial support from Ministerio de Ciencia, Innovación y Universidades grant number FIS2017-83709-R.
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 6 oct 2024