Can I read Demon-free quantum Brownian motors on EtoBox?

Demon-free quantum Brownian motors by Machura, L.; Kostur, M.; Hänggi, P.; Talkner, P.; uczka, J. L is a scholarly article available to read on EtoBox.

What is Demon-free quantum Brownian motors about?

A quantum Smoluchowski equation is put forward that consistently describes thermal quantum states. In particular, it notably does not induce a violation of the second law of thermodynamics. This so modified kinetic equation is applied to study {\it analytically} directed quantum transport at strong friction in arbitrarily shaped ratchet potentials that are driven by nonthermal two-state noise. Depending on the mutual interplay of quantum tunneling and quantum reflection these quantum corrections can induce both, either a sizable enhancement or a suppression of transport. Moreover, the threshold for current reversals becomes markedly shifted due to such quantum fluctuations.

Author

Machura, L.; Kostur, M.; Hänggi, P.; Talkner, P.; uczka, J. L

Published

2004

Language

EN