Origin of conical dispersion relations
Hojman
S
A
author
2014
English
A mechanism that produces conical dispersion relations is presented. A Kronig Penney one dimensional array with two different strengths delta function potentials gives rise to both the gap closure and the dispersion relation observed in graphene and other materials. The Schrodinger eigenvalue problem is locally invariant under, the infinite dimensional Virasoro algebra near conical dispersion points in reciprocal space, thus suggesting a possible relation to string theory.
Quantum mechanics
modified Dirac-Kronig-Penney potential
conical dispersion relations
WOS:000341802200001
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files/409_Hojman2014.pdf
http://rmf.smf.mx/pdf/rmf/60/5/60_5_336.pdf
Hojman2014
Revista Mexicana De Fisica
Rev. Mex. Fis.
2014
Soc Mexicana Fisica
continuing
periodical
academic journal
60
5
336
339
0035-001x