The Brownian motion of a hot nanoparticle is described by an effective Markov theory based on fluctuating hydrodynamics. Its predictions are scrutinized over a wide temperature range using large-scale molecular dynamics simulations of a hot nanoparticle in a Lennard-Jones fluid. The particle positions and momenta are found to be Boltzmann distributed according to distinct effective temperatures THBM and Tk. For T HBM we derive a formally exact theoretical prediction and establish a generalised Einstein relation that links it to directly measurable quantities. Copyright © EPLA, 2011.
CITATION STYLE
Chakraborty, D., Gnann, M. V., Rings, D., Glaser, J., Otto, F., Cichos, F., & Kroy, K. (2011). Generalised Einstein relation for hot Brownian motion. EPL, 96(6). https://doi.org/10.1209/0295-5075/96/60009
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