| Issue |
EPL
Volume 116, Number 1, October 2016
|
|
|---|---|---|
| Article Number | 10007 | |
| Number of page(s) | 7 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/116/10007 | |
| Published online | 18 November 2016 | |
Continuous information flow fluctuations
1 Laboratoire de Physique Théorique de la Matière Condensée, Université Pierre et Marie Curie, CNRS UMR 7600 4 place Jussieu, 75252 Paris Cedex 05, France
2 Physics of Living Systems Group, Department of Physics, Massachusetts Institute of Technology 400 Technology Square, Cambridge, MA 02139, USA
Received: 20 July 2016
Accepted: 24 October 2016
Information plays a pivotal role in the thermodynamics of nonequilibrium processes with feedback. However, much remains to be learned about the nature of information fluctuations in small-scale devices and their relation with fluctuations in other thermodynamics quantities, like heat and work. Here we derive a series of fluctuation theorems for information flow and partial entropy production in a Brownian particle model of feedback cooling and extend them to arbitrary driven diffusion processes. We then analyze the long-time behavior of the feedback-cooling model in detail. Our results provide insights into the structure and origin of large deviations of information and thermodynamic quantities in autonomous Maxwell's demons.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 89.70.-a – Information and communication theory
© EPLA, 2016
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