REFLECTION ABOVE POTENTIAL STEPS

Authors
COTE R FRIEDRICH H TROST J
Citation
R. Cote et al., REFLECTION ABOVE POTENTIAL STEPS, Physical review. A, 56(3), 1997, pp. 1781-1787
Citations number
14
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
56
Issue
3
Year of publication
1997
Pages
1781 - 1787
Database
ISI
SICI code
1050-2947(1997)56:3<1781:RAPS>2.0.ZU;2-8
Abstract
Classically forbidden reflection by a potential step is analyzed by ma tching WKB waves to solutions of a Schrodinger equation involving the tail of the potential on the up side of the step. Analytic expressions for the leading deviation of the reflection probability from unity an d the phase of the reflection amplitude at the top of the step are der ived for potentials decaying as an inverse power of the coordinate V(x )(proportional to)-1/x(alpha), alpha>2.