Abstract

ALVAREZ, J.J.; GADELLA, M.  and  NIETO, L.M.. Dirac comb with a periodic mass jump. Rev. mex. fis. [online]. 2013, vol.59, n.6, pp.606-612. ISSN 0035-001X.

We discuss some of the properties of the spectrum of a Dirac comb with periodic mass discontinuity. Based on the relationship between the two different masses, we derive the general behavior of the spectra for both cases E > 0 and E < 0. The relationship with the constant mass model for the Dirac comb and the generalization to periodic quantum chains with n different masses are also discussed.

Keywords : Delta interactions; mass jumps; periodic potentials; energy band structures.

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