| Autor: |
Haljas A; Department of Natural Sciences, Tallinn Pedagogical University, 25 Narva Road, 10120 Tallinn, Estonia., Mankin R, Sauga A, Reiter E |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review. E, Statistical, nonlinear, and soft matter physics [Phys Rev E Stat Nonlin Soft Matter Phys] 2004 Oct; Vol. 70 (4 Pt 1), pp. 041107. Date of Electronic Publication: 2004 Oct 28. |
| DOI: |
10.1103/PhysRevE.70.041107 |
| Abstrakt: |
Overdamped motion of Brownian particles in a 1D periodic system with a simple symmetric sawtooth potential subjected to both unbiased thermal noise and spatially nonhomogeneous three-level colored noise is considered analytically. Upon application of a tilting force the particles exhibit anomalous transport properties, namely, absolute negative mobility, negative differential mobility, and the phenomenon of hypersensitive differential response. It is established that the mobility (differential mobility included) depends nonmonotonically on the parameters (switching rate, amplitude, and temperature) of nonequilibrium and thermal noises. The necessary conditions for various anomalous transport properties are found. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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