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arXiv · 1103.0945

Relativistic Brownian motion on a graphene chip

Andrey Pototsky·Fabio Marchesoni·Feodor V. Kusmartsev·Peter Hänggi·Sergey E. Savel'ev
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Abstract

Relativistic Brownian motion can be inexpensively demonstrated on a graphene chip. The interplay of stochastic and relativistic dynamics, governing the transport of charge carrier in graphene, induces noise-controlled effects such as (i) a stochastic effective mass, detectable as a suppression of the particle mobility with increasing the temperature; (ii) a transverse ratchet effect, measurable as a net current orthogonal to an ac drive on an asymmetric substrate, and (iii) a chaotic stochastic resonance. Such properties can be of practical applications in the emerging graphene technology.

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Andrey Pototsky, Fabio Marchesoni, Feodor V. Kusmartsev, Peter Hänggi, Sergey E. Savel'ev. 2011-03-04. Relativistic Brownian motion on a graphene chip. https://doi.org/10.1140/epjb/e2012-30716-7

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