Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Sastry, V. S."'
Spontaneous onset of a low temperature topologically ordered phase in a 2-dimensional (2D) lattice model of uniaxial liquid crystal (LC) was debated extensively pointing to a suspected underlying mechanism affecting the RG flow near the topological f
Externí odkaz:
http://arxiv.org/abs/2106.14570
Autor:
B, Kamala Latha., S, Sastry V. S.
Publikováno v:
Phys. Rev. E 102, 040701 (2020)
Two-dimensional 3-vector (\textit{d}=2, \textit{n}=3) lattice model with inversion site symmetry and fundamental group of its order-parameter space $\Pi_1 (\mathcal{R})= Z_{2}$, did not exhibit the expected topological transition despite stable defec
Externí odkaz:
http://arxiv.org/abs/2005.09346
Autor:
Latha, B. Kamala, Sastry, V. S. S.
Publikováno v:
Phys. Rev. Lett. 121, 217801 (2018)
The presence of stable topological defects in a two-dimensional (\textit{d} = 2) liquid crystal model allowing molecular reorientations in three dimensions (\textit{n} = 3) was largely believed to induce defect-mediated Berzenskii-Kosterlitz-Thouless
Externí odkaz:
http://arxiv.org/abs/1806.07113
Publikováno v:
Phys. Rev. E 96, 032703 (2017)
General quadratic Hamiltonian models, describing interaction between crystal molecules (typically with $D_{2h}$ symmetry) take into account couplings between their uniaxial and biaxial tensors. While the attractive contributions arising from interact
Externí odkaz:
http://arxiv.org/abs/1706.04761
Phase sequences of the biaxial nematic liquid crystal in the interior of the essential triangle are studied with Wang Landau sampling. The evidence points to the existence of an intermediate unixial phase with low biaxiality in the isotropic to biaxi
Externí odkaz:
http://arxiv.org/abs/1509.04683
Publikováno v:
Physical Review 92, 012505 (2015)
Investigations of the phase diagram of biaxial liquid crystal systems through analyses of general Hamiltonian models within the simplifications of mean-field theory (MFT), as well as by computer simulations based on microscopic models, are directed t
Externí odkaz:
http://arxiv.org/abs/1509.03834
Equilibrium director structures in two thin hybrid planar films of biaxial nematics are investigated through Markov chain Monte Carlo simulations based on a lattice Hamiltonian model within the London dispersion approximation. While the substrates of
Externí odkaz:
http://arxiv.org/abs/1507.08609
We consider in this paper, a few important issues in non-equilibrium work fluctuations and their relations to equilibrium free energies. First we show that Jarzynski identity can be viewed as a cumulant expansion of work. For a switching process whic
Externí odkaz:
http://arxiv.org/abs/1011.4413
Nematic liquid crystals confined to geometrically as well as chemically patterned substrate on one end and a flat substrate with strong anchoring on the other is studied using non-Boltzmann Monte Carlo methods. We observe significant deviations from
Externí odkaz:
http://arxiv.org/abs/1010.3106
The confining effect of a spherical substrate inducing anchoring (normal to the surface) of rod-like liquid crystal molecules contained in a thin film spread over it has been investigated with regard to possible changes in the nature of the isotropic
Externí odkaz:
http://arxiv.org/abs/1010.3111