Feshbach resonances in positron scattering from sodium
نویسندگان
چکیده
منابع مشابه
Fano-Feshbach resonances in two-channel scattering around exceptional points
It is well known that in open quantum systems resonances can coalesce at an exceptional point, where both the energies and the wave functions coincide. In contrast to the usual behaviour of the scattering amplitude at one resonance, the coalescence of two resonances invokes a pole of second order in the Green’s function, in addition to the usual first order pole. We show that the interference d...
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T. V. Tscherbul,1,2,* T. Calarco,3 I. Lesanovsky,4 R. V. Krems,5 A. Dalgarno,1,2 and J. Schmiedmayer6 1Harvard-MIT Center for Ultracold Atoms, Cambridge, Massachusetts 02138, USA 2ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA 3Institute of Quantum Information Processing, Ulm University, D-89081 Ulm, Germany 4School of Physics and Astronomy, The Universi...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2012
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/388/7/072004