PT-supersymmetric partner of a short-range square well
C. Quesne, B. Bagchi, S. Mallik, H. Bila, V. Jakubsky, M. Znojil
Abstract
In a box of size L, a spatially antisymmetric square-well potential of a purely imaginary strength ig and size l < L is interpreted as an initial element of the SUSY hierarchy of solvable Hamiltonians, the energies of which are all real for g < gc(l). The first partner potential is constructed in closed form and discussed.
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