Paper
19 November 2001 Ratchets: muscles, molecules, and quantum heat pumps
Heiner Linke, Tammy E. Humphrey
Author Affiliations +
Proceedings Volume 4590, BioMEMS and Smart Nanostructures; (2001) https://doi.org/10.1117/12.454613
Event: International Symposium on Microelectronics and MEMS, 2001, Adelaide, Australia
Abstract
Ratchets are systems that combine asymmetry with non-equilibrium processes to generate directed particle flow. A brief general introduction to ratchets is given, and the relevance of the ratchet model for biological motor proteins is highlighted. While biological motor proteins operate classically, ratchet systems that employ quantum effects are of interest from a fundamental point of view. A recent experimental realization of a tunnelling ratchet for electrons is reviewed. Such electron tunnelling ratchets can not only be used to generate particle currents, but also to pump heat. Using a realistic model, the heat pumping properties of the experimental electron ratchet are analysed.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Heiner Linke and Tammy E. Humphrey "Ratchets: muscles, molecules, and quantum heat pumps", Proc. SPIE 4590, BioMEMS and Smart Nanostructures, (19 November 2001); https://doi.org/10.1117/12.454613
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KEYWORDS
Electrons

Particles

Molecules

Proteins

Motion models

Stochastic processes

Switching

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