Abstract
The problem of random rotational displacement is solved and the theory of Brownian motion of molecules in crystals is developed. The probability distribution of orientations of a molecule is found as a decomposition into matrix elements of irreducible representations of point groups.
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References
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E. N. Ivanov,Phys. Stat. Sol. 42:453 (1970).
G. Y. Lubarsky,The Theory of Groups and Its Application in Physics, Fizmatgiz, Moscow (1958).
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Ivanov, E.N. Rotational displacements in crystals. J Stat Phys 8, 177–181 (1973). https://doi.org/10.1007/BF01008538
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DOI: https://doi.org/10.1007/BF01008538