Generalised Einstein relation for hot Brownian motion

  title={Generalised Einstein relation for hot Brownian motion},
  author={Debashree Chakraborty and Manuel V. Gnann and Daniel Rings and Jens Glaser and Felix Otto and Frank Cichos and Klaus Kroy},
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 THBM we derive a formally exact theoretical prediction and establish a generalised… CONTINUE READING

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