The field of experimental positronium physics has advanced significantly in the last few
decades, with new areas of research driven by the development of techniques for trapping …

The large electric dipole moments associated with highly excited Rydberg states of atoms
and molecules make gas-phase samples in these states very well suited to deceleration and …

A three-dimensional trap for Rydberg atoms in selected Stark states has been realized
experimentally. H atoms seeded in a supersonic expansion of Ar are excited to the low-field …

Hydrogen molecules in selected core-nonpenetrating Rydberg-Stark states have been
decelerated from a mean initial velocity of 500 m/s to zero velocity in the laboratory frame …

Methods for the production of cold atomic and molecular samples relying on the
deceleration of pulsed supersonic beams are described and a review of the corresponding …

Argon atoms in Stark states at n≈ 25 have been decelerated and accelerated in
inhomogeneous electric fields. The acceleration and deceleration behavior can be …

Hydrogen molecules are excited in a molecular beam to Rydberg states around n= 17–18
and are exposed to the inhomogeneous electric field of an electric dipole. The large dipole …

Hydrogen atoms in supersonic expansions with velocities in the range from 700 to 800 m∕
s have been excited to Rydberg-Stark states with principal quantum number n between 20 …

Rydberg positronium (Ps) atoms have been prepared in selected Stark states via two-step (1
s→ 2 p→ nd/ns) optical excitation. Two methods have been used to achieve Stark-state …

Hydrogen atoms in Rydberg states with principal quantum numbers between 23 and 70
have been accelerated, decelerated, and electrostatically trapped using a surface-electrode …