2026-04-29T19:48:34Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/103182025-03-14T01:05:30Zcom_10259.4_2557com_10259_5086com_10259_2604col_10259.4_2558

00925njm 22002777a 4500 dc Mateos Guilarte, Juan María author Muñoz Castañeda, José María author Pirozhenko, Irina author Santamaría Sanz, Lucía author 2019-08 We study the spectrum of the 1D Dirac Hamiltonian encompassing the bound and scattering states of a fermion distorted by a static background built from δ-function potentials. After introducing the most general Dirac-δ potential for the Dirac equation we distinguish between “mass-spike” and “electrostatic” δ-potentials. Differences in the spectra arising depending on the type of δ-potential are studied in deep detail. http://hdl.handle.net/10259/10318 10.3389/fphy.2019.00109 2296-424X Contact interactions Dirac equation Dirac delta Selfadjoint extensions Relativistic quantum mechanics One-Dimensional Scattering of Fermions on δ-Impurities