The interacting induced dipole polarization model implemented in our program POLAR is used for the calculation of the dipole-dipole polarizability alpha. The method is tested with single-wall carbon nanotube models as a function of nanotube radius and elliptical deformation. The results for polarizability follow the same trend as reference calculations performed with our version of the program ...

We investigate the profiles of off-diagonal components of static linear ( xy, yx), first nonlinear ( xyy, yxx), and second nonlinear ( xxyy and yyxx), polarizabilities of repulsive impurity doped quantum dots. The dopant impurity potential is expressed as a Gaussian function. The study thrusts on investigating the role of Gaussian white noise on the polarizability components. The noise has been...

We show that combined electrostatic and radiative fields can greatly amplify the directional properties, such as axis orientation and alignment, of symmetric top molecules. In our computational study, we consider all four symmetry combinations of the prolate and oblate inertia and polarizability tensors, as well as the collinear and perpendicular (or tilted) geometries of the two fields. In, re...

Development has begun of a new experiment to measure the charged pion polarizability απ − βπ . The charged pion polarizability ranks among the most important tests of low-energy QCD presently unresolved by experiment. Analogous to precision measurements of π◦→ γγ that test the intrinsic odd-parity (anomalous) sector of QCD, the pion polarizability tests the intrinsic evenparity sector of QCD. T...

magnesium oxide nanoclusters have attracted much attention due to their potential applications to catalysis and novel optoelectronic materials. in the present study, we have studied the electronic and magnetic properties of the stoichiometric magnesium oxide nanoclusters (mgo)n  for n = 2-20. although the binding energy increases with the size of the cluster, it  reaches the asymptotic limit of...

The seagull terms for the electric polarizability of the nucleon are shown to vanish indeed, if one introduces fluctuations around the Skyrmion configuration, and after all the origin of the electric polarizability cannot be attributed to the seagull terms in the Skyrme model. E-mail address [email protected] E-mail address ueharam@cc. saga-u.ac.jp 1