Physics – Quantum Physics
Scientific paper
1998-06-23
Phys.Rev. A56 (1997) 1938-1944
Physics
Quantum Physics
LaTeX, no figure
Scientific paper
10.1103/PhysRevA.56.1938
A two-dimensional analogue of Levinson's theorem for nonrelativistic quantum
mechanics is established, which relates the phase shift at threshold(zero
momentum) for the $m$th partial wave to the total number of bound states with
angular momentum $m\hbar(m=0,1,2,...)$ in an attractive central field.
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