Geodesic
Point interaction of two distinguishable particles in an external field
Teoretičeskaâ i matematičeskaâ fizika, Tome 125 (2000) no. 1, pp. 74-90 
M. Kh. Shermatov. Point interaction of two distinguishable particles in an external field. Teoretičeskaâ i matematičeskaâ fizika, Tome 125 (2000) no. 1, pp. 74-90. http://geodesic.mathdoc.fr/item/TMF_2000_125_1_a2/
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Voir la notice de l'article provenant de la source Math-Net.Ru

We consider a point interaction model for two particles in an external field, which is similar to the Skornyakov–Ter-Martirosyan model and is treated using the theory of self-adjoint extensions of symmetric operators. The corresponding energy operator has an infinite set of bound states with the energy values receding to $-\infty$.

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