Microscopic chaos from brownian motion?

C. P. Dettmann, E. G. D. Cohen and H. van Beijeren
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C. P. Dettmann: Center for Studies in Physics and Biology, Rockefeller University
E. G. D. Cohen: Center for Studies in Physics and Biology, Rockefeller University
H. van Beijeren: Institute for Theoretical Physics, University of Utrecht

Nature, 1999, vol. 401, issue 6756, 875-875

Abstract: Abstract Gaspard et al.1 have analysed a time series of the positions of a brownian particle in a liquid, and claimed that it provides empirical evidence for microscopic chaos on a molecular scale. An accompanying comment2 emphasized the fundamental nature of the experiment. Here we show that virtually identical results can be obtained by analysing a corresponding numerical time series of a particle in a manifestly microscopically non-chaotic system.

Date: 1999
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DOI: 10.1038/44759

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