Rotational hot Brownian motion

Details Rotational hot Brownian motion Rotational hot Brownian motion

2012-03-14

arxiv.org/abs/1203.3221v1

Physics

Condensed Matter

Soft Condensed Matter

15 pages, 6 figures

Scientific paper

We establish an effective Markov theory for the rotational Brownian motion of hot nanobeads and nanorods. Compact analytical expressions for the effective temperature and friction are derived from the fluctuating hydrodynamic equations of motion. They are verified by comparison with recent measurements and with GPU powered parallel molecular dynamics simulations over a wide temperature range. This provides unique insights into the physics of hot Brownian motion and an excellent starting point for further experimental tests and applications involving laser-heated nanobeads, nanorods and Janus particles.

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