Hannover 2010 – scientific programme
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A: Fachverband Atomphysik
A 29: Atomic Systems in External Fields II
A 29.8: Talk
Friday, March 12, 2010, 15:45–16:00, B 302
Frozen planet states in helium with non-zero angular momentum — •Celsus Bouri1,2, Johannes Eiglsperger3, Javier Madronero3,4, and Andreas Buchleitner1 — 1Quantum Optics and Statistics, Institute of Physics, University of Freiburg, 79104 Freiburg, Germany — 2CEPAMOQ, University of Douala, B.P. 8580 Douala, Cameroon — 3Physik Department, Technische Universität München, 85747 Garching, Germany — 4Laboratoire de Physique Atomique, Moléculaire et Optique (PAMO), Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
We demonstrate the existence of frozen planet states (FPS) in helium for total angular momenta L=1 and L=2. The calculations are conducted for the planar (2D) and for the full 3-dimensional (3D) helium. The simplified planar model reproduces the reproduces qualitavely well the results of our full 3D appraoch. The identification of the FPS is achieved through the localitation properties of their wavefunction in configuration space. The small magnitude of their decay rates and the large value of <cosθ12>, θ12 being the mutual angle between the two electrons, characterize L=1 FPS. These two quantities can be used to identify these states. These simple criteria do not apply for D states. Here, the localization properties of the wave functions both in configuration and phase space need to be analyzed.