Schroedinger equations with indefinite effective mass

Miloslav Znojil; Géza Lévai

doi:10.1016/j.physleta.2012.09.021

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arXiv · 1201.6142

Schroedinger equations with indefinite effective mass

Miloslav Znojil·Géza Lévai

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Abstract

The consistency of the concept of quantum (quasi)particles possessing effective mass which is both position- and excitation-dependent is analyzed via simplified models. It is shown that the system may be stable even when the effective mass m=m(x,E) itself acquires negative values in a limited range of coordinates x and energies E.

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Miloslav Znojil, Géza Lévai. 2012-01-30. Schroedinger equations with indefinite effective mass. https://doi.org/10.1016/j.physleta.2012.09.021

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