Fluctuation Theorems of Brownian Particles Controlled by a Maxwell's Demon
| dc.creator | Kim, Kyung Hyuk | |
| dc.creator | Qian, Hong | |
| dc.date | 2006-01-12 | |
| dc.date.accessioned | 2026-07-07T07:48:15Z | |
| dc.date.available | 2026-07-07T07:48:15Z | |
| dc.description | We study the stochastic dynamics of Brownian particles in a heat bath and subject to an active feedback control by an external, Maxwell's demon-like agent. The agent uses the information of the velocity of a particle and reduces its thermal agitation by applying a force. The entropy of the particle and the heat bath as a whole, thus, reduces. Entropy pumping [Phys. Rev. Lett. 93, 120602 (2004)] quantifies the entropy reduction. We discover that the entropy pumping has a dual role of work and heat contributing to free energy changes and entropy production of the open-system with the feedback control. Generalized Jarzynski equality and fluctuation theorems for work functional and entropy production are developed with the presence of the entropy pumping. | |
| dc.description | 4 pages | |
| dc.identifier | https://arxiv.org/abs/physics/0601085 | |
| dc.identifier | http://arxiv.org/abs/physics/0601085 | |
| dc.identifier | Phys. Rev. E 75, 022102 (2007) | |
| dc.identifier | doi:10.1103/PhysRevE.75.022102 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/124429 | |
| dc.subject | Classical Physics | |
| dc.title | Fluctuation Theorems of Brownian Particles Controlled by a Maxwell's Demon | |
| dc.type | text |