Zero-point motion of liquid and solid hydrogen

Wetting Studies of Solid and Liquid Hydrogen Isotope Films

Laser cooling to the zero-point energy of motion.

The subject of laser cooling of ions and neutral atoms is currently of great experimental and theoretical interest. ' It has been applied to high-resolution spectroscopy, low-energy collisions, quantum jumps, and photon antibunching. In all cooling experiments done so far, the oscillation frequency co, of the particle in its confining well was less than the linewidth I of the cooling transition...

Reorientational motion and hydrogen-bond stretching dynamics in liquid water

The reorientational motion of the molecules in liquid water is investigated by measuring the anisotropy decay of the O±H stretching mode of HDO dissolved in D2O using femtosecond mid-infrared pump±probe spectroscopy. We observe that the anisotropy shows a non-exponential decay with an initial fast component of which the amplitude increases with increasing lengths of the O±H O hydrogen bond. The...

A strong convergence theorem for solutions of zero point problems and fixed point problems

Zero point problems of the sum of two monotone mappings and fixed point problems of a strictly pseudocontractive mapping are investigated‎. ‎A strong convergence theorem for the common solutions of the problems is established in the framework of Hilbert spaces‎.

Hydrogen adsorption energies on bimetallic overlayer systems at the solid-vacuum and the solid-liquid interface

Atomic hydrogen adsorption energies on bimetallic overlayer systems have been determined by periodic density functional theory calculations within the generalized gradient approximation. On the pseudomorphic Pd/Cu(111) surface, both the substrate interaction and the lattice compression of the Pd overlayer lead to smaller hydrogen binding energies. For pseudomorphic Cu/Pd(111), on the hand, the ...