The effect of orientation of Rydberg atoms on their collisional ionization cross section

Abstract

Collisional ionization between two Rydberg atoms in relative motion is examined. A classical trajectory Monte Carlo method is used to determine the cross sections associated with Penning ionization. The dependence of the ionization cross section on the magnitude and the direction of orbital angular momentum of the electrons and the direction of the Laplace-Runge-Lenz vector of the electrons is studied. For a given magnitude of angular momentum, there can exist a difference of a factor of up to $\sim 2.5$ in the ionization cross section between the orientation with the highest and the lowest ionization cross section. The case of exchange ionization is examined and its dependence on the magnitude of angular momentum is studied.

arXiv comment10 pages, 8 figures

References in corpus (10)

• Observation of Rydberg blockade between two atoms
• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Local Blockade of Rydberg Excitation in an Ultracold Gas
• Modeling many-particle mechanical effects of an interacting Rydberg gas
• Ionization of Rydberg atoms by blackbody radiation
• Cold and Ultracold Rydberg Atoms in Strong Magnetic Fields
• Ultrafast creation of overlapping Rydberg electrons in an atomic BEC and Mott-insulator lattice
• Fast and accurate circularization of a Rydberg atom
• Circularizing Rydberg atoms with time-dependent optical traps
• Some new aspects of first integrals and symmetries for central force dynamics

Cited by in corpus (1)

• Electron Temperature Relaxation in the Clusterized Ultracold Plasmas