Schroedinger equations with indefinite effective mass

Details Schroedinger equations with indefinite effective mass Schroedinger equations with indefinite effective mass

2012-01-30

arxiv.org/abs/1201.6142v1

Physics

Quantum Physics

16 pp., 3 figs

Scientific paper

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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