Atomic scale engines: Taking a turn

Markus Porto*, Michael Urbakh, Joseph Klafter

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We investigate a new approach which has been recently introduced to construct microscopic engines whose main characteristic is the possibility to determine dynamically the direction of motion. The approach is based on the transformation of the supplied energy into directed motion through a dynamical competition between the intrinsic lengths of the moving object and the substrate. The engines are able to move translationally or rotationally and can perform useful functions such as pulling of a cargo. We discuss possible realizations and introduce some ingredients, such as turns and switches, important for creating a microscopic 'railway system.'.

Original languageEnglish
Pages (from-to)295-306
Number of pages12
JournalActa Physica Polonica B
Issue number2
StatePublished - 2001
EventXXIV International School of Theoretical Physics -Transport Quantum to Classical Regimes - Ustron, Poland
Duration: 25 Sep 20001 Oct 2000


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