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Titolo:
Constructive role of temperature in ratchets driven by trichotomous noise - art. no. 041110
Autore:
Mankin, R; Ainsaar, A; Haljas, A; Reiter, E;
Indirizzi:
Tallinn Pedag Univ, Dept Nat Sci, EE-10120 Tallinn, Estonia Tallinn Pedag Univ Tallinn Estonia EE-10120 i, EE-10120 Tallinn, Estonia Tallinn Tech Univ, Inst Phys, EE-19086 Tallinn, Estonia Tallinn Tech UnivTallinn Estonia EE-19086 ys, EE-19086 Tallinn, Estonia
Titolo Testata:
PHYSICAL REVIEW E
fascicolo: 4, volume: 6304, anno: 2001,
parte:, 1
pagine: 1110 -
SICI:
1063-651X(200104)6304:4<1110:CROTIR>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLUCTUATION-INDUCED TRANSPORT; CURRENT REVERSAL; MOLECULAR MOTORS; STOCHASTIC RATCHETS; PERIODIC POTENTIALS; CHAOTIC TRANSPORT; PARTICLES; MOTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Mankin, R Tallinn Pedag Univ, Dept Nat Sci, Narva Mnt 25, EE-10120 Tallinn, Estonia Tallinn Pedag Univ Narva Mnt 25 Tallinn Estonia EE-10120 stonia
Citazione:
R. Mankin et al., "Constructive role of temperature in ratchets driven by trichotomous noise - art. no. 041110", PHYS REV E, 6304(4), 2001, pp. 1110

Abstract

The dynamics of an overdamped Brownian particle in a piecewise linear spatially periodic potential subjected to both thermal and colored symmetric three-level Markovian (trichotomous) noises is investigated. In the case of large flatness, the exact formula for the stationary current is presented. The dependence of the current on the system parameters is analyzed and the conditions for the occurrence of current reversals are found. It is shown that the direction and value of the current can be controlled by a thermal noise. Asymptotic formulas for the current for various limits of the noise parameters are calculated and compared with the results of other authors. Forsmall noise amplitudes, it is demonstrated that the temperature at which the current is maximized is proportional to the height of the potential barrier, being a slowly varying function of the other system parameters.

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Documento generato il 28/03/20 alle ore 23:37:59