New solvable quantum mechanical potentials by iteration of the free V=0 potential

Details New solvable quantum mechanical potentials by iteration of the free V=0 potential New solvable quantum mechanical potentials by iteration of the free V=0 potential

2003-11-20

arxiv.org/abs/quant-ph/0311139v1

Physics

Quantum Physics

Latex,17 pages,2 figures;to be published in Nuovo Cimento B

Scientific paper

10.1393/ncb/i2002-10008-y

A huge family of solvable potentials can be generated by systematically exploiting the factorization (Darboux) method. Starting from the free case, a large class of the known solvable families is thus reproduced, together with new ones. We explicitly find and solve several new singular potentials obtained by iteration from the V=0 case; some of them have an E=0 bound state and constant phase shift without being explicitly scale invariant. The new potentials are rational functions, and can be related to rational solutions of the KdV family.

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