Pulak Kumar Ghosh and Deb Shankar Ray J. Stat. Mech. (2007) P03003 doi:10.1088/1742-5468/2007/03/P03003
Pulak Kumar Ghosh and Deb Shankar Ray
Show affiliationsWe consider the underdamped Brownian dynamics of particles in a symmetric periodic potential by taking into account systematic quantum corrections order by order and show that a very slow asymmetric and periodic modulation with zero temporal average can induce directed quantum transport in the limit
, where ωs, γ and τ are the system frequency, the dissipation constant and the time period of the modulation, respectively.
Issue 03 (March 2007)
Received 21 November 2006, accepted for publication 9 February 2007
Published 2 March 2007
Pulak Kumar Ghosh and Deb Shankar Ray J. Stat. Mech. (2007) P03003
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