Our previously developed polarizable electrostatic model is applied to isolated N-methylacetamide (NMA) and to three hydrogen-bonded configurations of the NMA dimer. Two versions of the model are studied. In the first one (POL1), polarizability along the valence bonds is described by induced bond charge increments, and polarizability perpendicular to the bonds is described by cylindrically isot...

We designed and developed a sensor that allows us to electronically monitor changes in physiological properties of biological cells. Based on the ability to simultaneously detect and dielectrophoretically (DEP) actuate cells, we can observe unique changes in the electronic detection signature that are directly related to polarizability of the cell. The important novel feature of this work is a ...

The interaction energy of two atoms in the presence of an external electrostatic field is evaluated up to sixth order with the help of covariant fieldtheoretical perturbation theory. The divergent Feynman diagrams entering the calculation are resummed according to a systematic procedure that has been developed in a previous paper. The pair polarizability and first hyperpolarizability that give ...

The atomic dipole polarizability governs the first-order response of an atom to an applied electric field. Atomic polarization phenomena impinge upon a number of areas and processes in physics and have been the subject of considerable interest and heightened importance in recent years. In this paper, we will summarize some of the recent applications of atomic polarizability studies. A summary o...

We calculate the electric polarizability α(q2) of the proton in virtual Compton scattering using the Skyrme model. The q2 dependence of the polarizability is comparable with the predictions obtained from the non-relativistic quark model and the linear sigma model. The chiral behaviors of our α(0) and d2α(0)/d2q2 agree with the results of the chiral perturbation theory. The discrepancy can be tr...

We propose a nuclear mechanism which can induce an atomic electric dipole moment (EDM). Parity and time reversal violating (P, T-odd) nuclear forces generate a mixed P, T-odd nuclear polarizability β ik (defined by an energy shift U = −β ik E i H k , E is electric field and H magnetic field). The interaction of atomic electrons with β ik produces an atomic EDM. We performed an analytical calcul...

The scalar and tensor polarizabilities of the deuteron are calculated using the recently developed effective field theory that describes nucleon-nucleon interactions. Leading and next-to-leading order contributions in the perturbative expansion predict a scalar electric polarizability of αE0 = 0.595 fm . The tensor electric polarizability receives contributions starting at next-toleading order ...