Unifying Three Perspectives on Information Processing in Stochastic Thermodynamics

Abstract

So far, feedback-driven systems have been discussed using (i) measurement and control, (ii) a tape interacting with a system, or (iii) by identifying an implicit Maxwell demon in steady-state transport. We derive the corresponding second laws from one master fluctuation theorem and discuss their relationship. In particular, we show that both the entropy production involving mutual information between system and controller and the one involving a Shannon entropy difference of an information reservoir like a tape carry an extra term different from the usual current times affinity. We, thus, generalize stochastic thermodynamics to the presence of an information reservoir.

Journal

Journal ID (publisher-id): PRLTAO

Title: Physical Review Letters

Abbreviated Title: Phys. Rev. Lett.

Publisher: American Physical Society (APS)

ISSN (Print): 0031-9007

ISSN (Electronic): 1079-7114

Publication date Created: March 2014

Publication date (Electronic): March 3 2014

Volume: 112

Issue: 9

Article

DOI: 10.1103/PhysRevLett.112.090601

PubMed ID: 24655235

Copyright statement: © 2014

License:

http://link.aps.org/licenses/aps-default-license

Product

Self URI (article page): https://link.aps.org/doi/10.1103/PhysRevLett.112.090601