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Püttner R, Grémaud B, Delande D, et al. Statistical properties of inter-series mixing in helium: from integrability to chaos. Phys Rev Lett. 2001;86(17):3747-50doi: 10.1103/PhysRevLett.86.3747.
Püttner, R., Grémaud, B., Delande, D., Domke, M., Martins, M., Schlachter, A. S., & Kaindl, G. (2001). Statistical properties of inter-series mixing in helium: from integrability to chaos. Physical review letters, 86(17), 3747-50. https://doi.org/10.1103/PhysRevLett.86.3747
Püttner, R, et al. "Statistical properties of inter-series mixing in helium: from integrability to chaos." Physical review letters vol. 86,17 (2001): 3747-50. doi: https://doi.org/10.1103/PhysRevLett.86.3747
Püttner R, Grémaud B, Delande D, Domke M, Martins M, Schlachter AS, Kaindl G. Statistical properties of inter-series mixing in helium: from integrability to chaos. Phys Rev Lett. 2001 Apr 23;86(17):3747-50. doi: 10.1103/PhysRevLett.86.3747. PMID: 11329314.
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Phys Rev Lett. 2001 Apr 23;86(17):3747-50. doi: 10.1103/PhysRevLett.86.3747.

Statistical properties of inter-series mixing in helium: from integrability to chaos.

Physical review letters

R Püttner, B Grémaud, D Delande, M Domke, M Martins, A S Schlachter, G Kaindl

Affiliations

  1. Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin-Dahlem, Germany.

PMID: 11329314 DOI: 10.1103/PhysRevLett.86.3747

Abstract

The photoionization spectrum of helium shows considerable complexity close to the double-ionization threshold. By analyzing the results from both our recent experiments and ab initio three- and one-dimensional calculations, we show that the statistical properties of the spacings between neighboring energy levels clearly display a transition towards quantum chaos.

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