VORTICES IN THE LATTICE MODEL OF PLANAR NEMATIC

1991 ◽  
Vol 05 (04) ◽  
pp. 647-657 ◽  
Author(s):  
D.V. KHVESHCHENKO ◽  
YA. I. KOGAN ◽  
S.K. NECHAEV
Keyword(s):  
Field Theory ◽  
Phase Transition ◽  
Strong Coupling ◽  
Lattice Model ◽  
Mean Field Theory ◽  
Mean Field ◽  
Strong Coupling Expansion ◽  
Theoretical Description ◽  
New Type

The vortices in the planar nematic are investigated using a field-theoretical description in terms of RP2 σ-model. In the limit of strong-coupling expansion the vortices interaction considered in the framework of mean-field theory describes a new type of phase transition.

scholarly journals Strong-coupling formula for momentum-dependent susceptibilities in dynamical mean-field theory

2019 ◽  
Vol 99 (16) ◽  
Author(s):  
Junya Otsuki ◽  
Kazuyoshi Yoshimi ◽  
Hiroshi Shinaoka ◽  
Yusuke Nomura
Keyword(s):  
Field Theory ◽  
Strong Coupling ◽  
Mean Field Theory ◽  
Mean Field ◽  
Dynamical Mean Field Theory

scholarly journals Miscibility studies of two twist-bend nematic liquid crystal dimers with different average molecular curvatures. A comparison between experimental data and predictions of a Landau mean-field theory for the NTB–N phase transition

2016 ◽  
Vol 18 (6) ◽  
pp. 4394-4404 ◽  
Author(s):  
D. O. López ◽  
B. Robles-Hernández ◽  
J. Salud ◽  
M. R. de la Fuente ◽  
N. Sebastián ◽  
...  
Keyword(s):  
Field Theory ◽  
Experimental Data ◽  
Phase Transition ◽  
Liquid Crystal ◽  
Nematic Phase ◽  
Mean Field Theory ◽  
Mean Field ◽  
Landau Model ◽  
First Order ◽  
Miscibility Studies

We have developed a Landau model that predicts a first order twist-bend nematic–nematic phase transition.

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