BROWSE

Related Scientist

Researcher

Govind Paneru
첨단연성물질 연구단
more info

Efficiency fluctuations and noise induced refrigerator-to-heater transition in information engines

Cited 0 time in webofscience Cited 0 time in scopus
7 Viewed 3 Downloaded
Title
Efficiency fluctuations and noise induced refrigerator-to-heater transition in information engines
Author(s)
Govind Paneru; Sandipan Dutta; Takahiro Sagawa; Tsvi Tlusty; Hyuk Kyu Pak
Publication Date
2020-02
Journal
NATURE COMMUNICATIONS, v.11, no.1, pp.1012 -
Publisher
NATURE PUBLISHING GROUP
Abstract
Understanding noisy information engines is a fundamental problem of non-equilibrium physics, particularly in biomolecular systems agitated by thermal and active fluctuations in the cell. By the generalized second law of thermodynamics, the efficiency of these engines is bounded by the mutual information passing through their noisy feedback loop. Yet, direct measurement of the interplay between mutual information and energy has so far been elusive. To allow such examination, we explore here the entire phase-space of a noisy colloidal information engine, and study efficiency fluctuations due to the stochasticity of the mutual information and extracted work. We find that the average efficiency is maximal for non-zero noise level, at which the distribution of efficiency switches from bimodal to unimodal, and the stochastic efficiency often exceeds unity. We identify a line of anomalous, noise-driven equilibrium states that defines a refrigerator-to-heater transition, and test the generalized integral fluctuation theorem for continuous engines. © The Author(s) 2020
URI
https://pr.ibs.re.kr/handle/8788114/7228
ISSN
2041-1723
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > Journal Papers (저널논문)
Files in This Item:
s41467-020-14823-x.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse