期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 111, 期 -, 页码 51-62出版社
ELSEVIER
DOI: 10.1016/j.physe.2019.02.025
关键词
Lippmann-Schwinger equation; Fredholm integral equation; Quantum billiard
资金
- CAPES
- FAPERJ
- CNPq
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) [001]
We present an exact solution to the Lippmann-Schwinger equation for a two-dimensional elliptic billiard modeled as a boundary-wall. Using a property of the Green function - which is a zeroth order Hankel function of the first kind - we managed to separate the integral equation Kernel. This approach allows us to study the problem analytically for four representative potential coupling strength gamma(s), namely: (i) gamma(s) = gamma(o)/root cosh(2)mu(0) - cos(2)s; (ii) gamma(s) = gamma(o); (iii) gamma(s) being a 2 pi - periodic even function; and (iv) gamma(s) being a 2 pi - periodic odd function, where gamma(o) is a real constant. Also, we find the condition which needs to be verified in order to the incident plane wave to produce a resonance inside the barrier.
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