Phys. Rev. Lett. 77, 2364–2367 (1996)Thermal Ratchets in 1+1 DimensionsReceived 8 April 1996; published in the issue dated 16 September 1996 The notion of thermal ratchet is extended to the 1+1 dimensional case of an overdamped soliton-bearing theory coupled to a Gaussian source of spatiotemporal noise with finite correlation time. A stationary noise-induced current of kinks and antikinks in opposite directions is computed as a function of the noise correlation time and the kink (antikink) asymmetry. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.2364
DOI:
10.1103/PhysRevLett.77.2364
PACS:
05.40.+j, 03.40.Kf, 87.10.+e
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