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A general set of states on a lattice in the phase plane is considered. The discrete set of von Neumann coherent states for a harmonic oscillator is a particular case of the abov...
Seasonal variations in 18 O content, in acidity, and in dust content have been used to count annual layers in the Dye 3 deep ice core back to the Late Glacial. In this way the P...
Optical spectroscopy provides a useful tool for probing the structure and dynamics of solids. Over the years, optical methods have evolved from absorption spectroscopy to more c...
In order to understand more deeply the surface enhanced Raman scattering (SERS) effect, this article develops a model, based upon the simulation of the UV–visible extinction spe...
Recently there have been many measures proposed to tackle the problem of congestion in computer networks. In this paper, we first analyze some of the measures and then present a...
Optical properties of a Bose condensate of ${\mathit{N}}_{\mathit{c}}$ atoms tightly confined to a harmonic oscillator potential are studied. A resonantly illuminated condensate...
A bright optical soliton described by a nonlinear Schrödinger equation can survive even in a positive dispersion region as long as the average dispersion has a negative value. T...