Optimal protocols and universal time-energy bound in Brownian thermodynamics

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

12 Scopus Citations
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Author(s)

  • Yoseline Rosales-Cabara
  • Giovanni Manfredi
  • Gabriel Schnoering
  • Paul-Antoine Hervieux
  • Cyriaque Genet

Detail(s)

Original languageEnglish
Article number012012(R)
Journal / PublicationPhysical Review Research
Volume2
Issue number1
Online published14 Jan 2020
Publication statusPublished - Jan 2020
Externally publishedYes

Abstract

We propose an optimization strategy to control the dynamics of a stochastic system transferred from one thermal equilibrium to another and apply it experimentally to a Brownian particle in an optical trap under compression. Based on a variational principle that treats the transfer duration and the expended work on an equal footing, our strategy leads to a family of protocols that is either optimally cheap for a given duration or optimally fast for a given energetic cost. This approach unveils a universal relation ΔtΔW≥(ΔtΔW)opt between the transfer duration and the expended work. We verify experimentally that the lower bound is reached only with the optimized protocols.

Citation Format(s)

Optimal protocols and universal time-energy bound in Brownian thermodynamics. / Rosales-Cabara, Yoseline; Manfredi, Giovanni; Schnoering, Gabriel et al.
In: Physical Review Research, Vol. 2, No. 1, 012012(R), 01.2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review