Relativistic Brownian motion on a graphene chip

Details Relativistic Brownian motion on a graphene chip Relativistic Brownian motion on a graphene chip

2011-03-04

arxiv.org/abs/1103.0945v3

Physics

Condensed Matter

Statistical Mechanics

4 pages, 3 figures

Scientific paper

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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