Berlin 2005 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
A: Atomphysik
A 8: Poster HU 1
A 8.46: Poster
Samstag, 5. März 2005, 08:30–18:30, Poster HU
Quantum two-particle scattering on finite cavities — •K. Morawetz1,2, M. Schreiber1, B. Schmidt1, A. Ficker1, and P. Lipavský3 — 1Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany — 2Max-Planck-Institute for the Physics of Complex Systems, Nöthnitzer Str. 38, 01187 Dresden, Germany — 3Institute of Physics, Academy of Sciences, Cukrovarnická 10, 16200 Praha 6, Czech Republic
Correlated two-particles are considered which interact with themselves and with a finite cavity. Choosing a separable two-particle potential, our method leads to exact solutions for the two-particle problem in the presence of the cavity. As a result the two-particle phase shift is calculated and compared to the single-particle one. A Fano resonance is observed caused by the interference of single- and two-particle channels. In addition, we investigate the two-particle bound state behavior and the influence of the cavity on the binding properties.
[1] K. Morawetz, M. Schreiber, B. Schmidt, A. Ficker, P. Lipavský, Phys. Rev. B sub., cond-mat/0409325