Quantum Ratchet motion

Ghosh, Pulak Kumar ; Ray, Deb Shankar (2007) Quantum Ratchet motion Journal of the Indian Institute of Science, 87 (3). pp. 401-427. ISSN 0970-4140

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Official URL: http://journal.library.iisc.ernet.in/vol200703/ray...


Ratchet models provide an useful mechanism for directed transport using nonequilibrium fluctuations of the surrounding. In the dynamics of micro-particles quantum effect is likely to make its presence felt in appropriate situations, particularly at low temperature. In this review we have discussed the aspects of ratchet motion in quantum domain. Making use of a Wigner canonical thermal distribution for description of the statistical properties of the noise, we explore the generic effects of quantization like vacuum field fluctuation and tunneling in fluctuation-induced quantum transport both in the overdamped and the underdamped limits and the energetics of quantum ratchet.

Item Type:Article
Source:Copyright of this article belongs to The Indian Institute of Science (IISc).
ID Code:69924
Deposited On:12 Nov 2011 11:35
Last Modified:18 May 2016 16:12

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