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Rotational Brownian Motion of a Pair of Dipoles Coupled via a Classical Heisenberg Interaction

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Abstract

The rotational Smoluchowski equation for the orientational distribution function of two dipoles with classical Heisenberg interaction is solved exactly. The equilibrium self- and pair time-correlation functions of the two dipole moments are evaluated. They are shown to be approximated well over a wide range of interaction strength by a superposition of two exponentials.

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Authors and Affiliations

  1. Institut für Theoretische Physik A, R.W.T.H. Aachen, Templergraben 55, 52056, Aachen, Germany

    B. U. Felderhof

  2. Experteach Gesellschaft für Netzwerkkompetenz mbH, Waldstrasse 94, 63128, Dietzenbach, Germany

    C. Löhn

Authors
  1. B. U. Felderhof
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  2. C. Löhn
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Felderhof, B.U., Löhn, C. Rotational Brownian Motion of a Pair of Dipoles Coupled via a Classical Heisenberg Interaction. Journal of Statistical Physics 110, 1099–1115 (2003). https://doi.org/10.1023/A:1022196810741

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  • DOI: https://doi.org/10.1023/A:1022196810741

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