We consider the massless Nelson model with two types of massive particles which we call atoms and electrons. The interact photons via an infrared regular form-factor thus they are Wigner-type sharp mass-shells. electrons have singular infraparticles accompanied by soft-photon clouds correlated their velocities. In weak coupling regime, construct scattering states one atom electron, demonstrate ...

Owing to their remarkable mechanical properties, carbon nanotubes have been employed in many diverse areas of applications. However, similar to any of the many man-made materials used today, carbon nanotubes (CNTs) are also susceptible to various kinds of defects. Understanding the effect of defects on the mechanical properties and behavior of CNTs is essential in the design of nanotube-based d...

The time evaluation of quantum entropy in a four-level double- type atomic system is theoretically investigated. Quantum entanglement of the atom and its spontaneous emission fields is then discussed via quantum entropy. It is found that the degree of entanglement can be increased by the quantum interference induced by spontaneous emission. The phase dependence of the atom-field entanglement is...

Here we review the understanding of classical hydrogen atom in electromagnetic zero-point radiation, and emphasize importance special relativity. The crucial missing ingredient earlier calculational attempts (both numerical analytic) is use valid approximations to full relativistic analysis. It pointed out that nonrelativistic time Fourier expansion coefficients given by Landau Lifshitz are err...

Problems connected with the long version of atom-based Periodic System of chemical elements with arbitrary 1–18 group numbering recommended by IUPAC are discussed. Introducing the atomic cores of elements instead of atoms to the Periodic Table enables to define unequivocally the Periodic System as a triparametric classification resulting from three numbers: the number of core electron shells n,...

Density functional (DFT) calculations at M05-2x/aug-cc-pVDZ level were used to analyze the interactions between dimethyl sulfoxide (DMSO) dimers. The structures obtained have been analyzed with the Atoms in Molecules (AIMs) and Natural Bond Orbital (NBO) methodologies. Four minima were located on the potential energy surface of the dimers. Three types of interactions are observed, CH•••O, CH•••...

We report on the experimental investigation of two-particle correlations between neutral atoms in a Hanbury Brown and Twiss experiment. Both an atom laser beam and a pseudo-thermal atomic beam are extracted from a Bose-Einstein condensate and the atom flux is measured with a single atom counter. We determine the conditional and the unconditional detection probabilities for the atoms in the beam...