Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2006-11-16
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Proceedings of the CCP6 Workshop on the Dynamics of Open Quantum Systems, Bangor, Wales, UK, 22-25 August 2006
Scientific paper
Brownian motors, i.e. devices able to produce useful work out of thermal forces with the help of other unbiased forces, provide an ideal benchmark for the investigation of quantum dissipative systems, for two reasons. First, the interaction with a dissipative environment plays an essential role in the performance of Brownian motors. Second, dissipative tunneling enriches the dynamics of quantum Brownian motors with respect to their classical counterpart, inducing features such as current reversals as a function of temperature. Here we report on our work on quantum Brownian motors and discuss the load characteristic of such a system.
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