Physics – Condensed Matter
Scientific paper
1994-11-08
Physics
Condensed Matter
11 pages
Scientific paper
10.1016/0375-9601(95)00204-G
The problem of the orientational ordering transition for lattice-gas models of liquid crystals is discussed in the low-dimensional case $d=1,2$. For isotropic short-range interactions, orientational long-range order at finite temperature is excluded for any packing of molecules on the lattice $Z^d$; on the other hand, for reflection-positive long-range isotropic interactions, we prove existence of an orientational ordering transition for high packing ($\mu > \mu_0$) and low temperatures ($\beta > \beta_c(\mu)$).
Angelescu Nicolae
Romano Silvano
Zagrebnov Valentin A.
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