Relativistic corrections to the long-range interaction between closed-shell atoms

Long-range interaction between polar Rydberg atoms

The most attractive and the most repulsive potential-energy curves for interaction between two Rydberg atoms in a broad superposition of internal angular momentum states are studied. The extreme Stark states have the largest dipole moments and provide the dominant contribution to the interaction which is then expressed as a long-range expansion involving the permanent multipole moments Qj of ea...

Long-Range Correlations in Closed Shell Nuclei

The effects of correlations on the bulk properties of nuclei are investigated in large model spaces including up to 21 single-particle orbits. The evaluation of the single-particle Green function is made feasible by means of the BAGEL approximation. The spectral function for single-nucleon pick-up and removal is investigated for the nuclei 16O and 40Ca. Special attention is paid to the effects ...

Long Range Interaction Corrections on the Quantum Vibronic Soliton

Self-localized modes in a quantum vibronic system, with long range interaction of Kac-Baker type and interacting nonlinearly with an acoustical phonon bath, is studied. One works in the coherent state approximation. Following a procedure of Sarker and Krumhansl the problem is reduced to a nearest neighbours one. In the continuum limit the localized state satisfy a mKdV equation. An approximate ...

Long Range Corrections to the Vapor-Liquid Equilibrium and Surface Tension of Methane with NVT Molecular Dynamics Simulations

Long-range interaction of two metastable rare-gas atoms

Motivated by cold-collision studies of metastable rare-gas atoms @1–4# and prospects of achieving Bose-Einstein condensation in these systems @5#, we present calculations of long-range dispersion ~van der Waals! coefficients for two atoms interacting in the ns(3/2)2 atomic states (n53 for Ne, n54 for Ar, n55 for Kr, and n56 for Xe!. The metastable states have long lifetimes, 43 s for Xe @6#, de...