## Search

Now showing items 1-10 of 15

#### Effect of cybotactic clusters on the elastic and flexoelectric properties of bent-core liquid crystals belonging to the same homologous series

(2013)

We report results of the splay (
K
11
) and bend (
K
33
) elastic constants and the effective flexoelectric coefficient
of three bent-core liquid crystals belonging to a homologous series of 4-cyanoresorcinol ...

#### Semiclassical master equation in Wigner's phase space applied to the Brownian motion in a periodic potential

(2007)

The quantum Brownian motion of a particle in a cosine periodic potential V x =?V0 cos x/x0 is treated
using the master equation for the time evolution of the Wigner distribution function W x, p, t in phase space
x, p ...

#### Mechanism of field-induced unwinding of SmC* helix and biasfield dependencies of dielectric permittivity and effective polarization

(2008)

We propose an unwinding model based on helical fractures confirmed by spectroscopic
and microscopic observations. This model combined with the fixed helical pitch can explain the
various physical phenomena observed in ...

#### Spin-size effects in stochastic resonance in uniaxial superparamagnets

(American Physical Society, 2010)

The relaxation dynamics of a uniaxial paramagnet of arbitrary spin value S, interacting with a thermal bath,
are treated using the spin-boson model for a particular spin Hamiltonian consisting of the simplest uniaxial
potential ...

#### Degeneracy lifting due to thermal fluctuations around the frustration point between anticlinic antiferroelectric SmCA* and synclinic ferroelectric SmC*

(2013)

In the binary mixture phase diagram of MC881 and MC452, the borderline between anticlinic antiferroelectric SmC?A and synclinic ferroelectric SmC? becomes apparently parallel to the temperature ordinate axis at the critical ...

#### Nonlinear noninertial response of a quantum Brownian particle in a tilted periodic potential to a strong ac force as applied to a point Josephson junction

(2009)

The normal phase diffusion problem in magnetic resonance imaging (MRI) is treated by means of the Langevin equation for the phase variable using only the properties of the characteristic function of Gaussian random variables. ...

#### Biaxial order parameter in the homologous series of orthogonal bent-core smectic liquid crystals

(2013)

The fundamental parameter of the uniaxial liquid crystalline state that governs nearly all of its physical properties is the primary orientational order parameter (S) for the long axes of molecules with respect to the ...

#### Double quantum dot photoluminescence mediated by incoherent reversible energy transport

(2010)

We present a theoretical study of the stationary photoluminescence of two, direct-gap, semiconductor nanocrystals,
taking into account electronic excitation energy-transfer processes due to electrostatic interaction. ...

#### Inertial Effects in the Fractional Translational Brownian Motion in a Double-Well Potential

(2007)

The anomalous translational diffusion including inertial effects of nonlinear Brownian oscillators in a double well potential V(x)=ax2?2+bx4?4 is considered. An exact solution of the fractional Klein-Kramers (Fokker-Planck) ...