Dirac comb with a periodic mass jump

Dirac comb with a periodic mass jump

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 Di...

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Veröffentlicht in:Revista mexicana de física 2013-12, Vol.59 (6), p.606-612
Hauptverfasser: Alvarez, J.J., Gadella, M., Nieto, L.M.
Format: Artikel
Sprache:eng ; por
Schlagworte:
Physics, Multidisciplinary
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Zusammenfassung: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.
ISSN:0035-001X