Otro
The Fermi pseudo-potential in one dimension
Registro en:
Journal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 37, n. 44, p. 10653-10663, 2004.
0305-4470
10.1088/0305-4470/37/44/013
WOS:000225511600020
Autor
Coutinho, FAB
Nogami, Y.
Tomio, L.
Toyama, F. M.
Resumen
Wu and Yu recently examined point interactions in one dimension in the form of the Fermi pseudo-potential. on the other hand there are point interactions in the form of self-adjoint extensions (SAEs) of the kinetic energy operator. We examine the relationship between the point interactions in these two forms in the one-channel and two-channel cases. In the one-channel case the pseudo-potential leads to the standard three-parameter family of SAEs. In the two-channel case the pseudo-potential furnishes a ten-parameter family of SAEs.