Abstract
Octupolar order is described in two space dimensions in terms of the maxima (and conjugated minima) of the probability density associated with a third-rank, fully symmetric and traceless tensor. Such a representation is shown to be equivalent to diagonalizing the relevant third-rank tensor, an equivalence which however is only valid in the two-dimensional case.
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Virga, E.G. Octupolar order in two dimensions. Eur. Phys. J. E 38, 63 (2015). https://doi.org/10.1140/epje/i2015-15063-x
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DOI: https://doi.org/10.1140/epje/i2015-15063-x