Constrained stability for biaxial nematic phases |
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| Authors: | Giovanni De Matteis Fulvio Bisi Epifanio G Virga |
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| Institution: | 1. Department of Mathematics, University of Strathclyde, Livingstone Tower, 26 Richmond Street, Glasgow, G1 1XH, Scotland
2. Dipartimento di Matematica and CNISM, Universita‘a di Pavia, Via Ferrata 1, 27100, Pavia, Italy
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| Abstract: | We study the invariance properties of the molecular Hamiltonian interaction put forward by Straley to describe biaxial nematic phases. We show that the reduction to two out of four scalar order parameters, which was accidently remarked upon in the literature, is indeed a rigorous consequence of the Hamiltonian invariance for specific values of the interaction parameters. The stability analysis of the mean-field free energy in the reduction classes for the order parameters reveals a sequence of Landau triple points. |
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