Artículos de revistas
Bounded solutions of fermions in the background of mixed vector-scalar Poeschl-Teller-like potentials
Fecha
2007-01-01Registro en:
Epl. Mulhouse: Epl Association, European Physical Society, v. 77, n. 2, 5 p., 2007.
0295-5075
10.1209/0295-5075/77/20009
WOS:000245671500009
5811700083195480
0212227705231604
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The problem of a fermion subject to a convenient mixing of vector and scalar potentials in a two-dimensional space-time is mapped into a Sturm-Liouville problem. For a specific case which gives rise to an exactly solvable effective modified Poschl-Teller potential in the Sturm-Liouville problem, bound-state solutions are found. The behaviour of the upper and lower components of the Dirac spinor is discussed in detail and some unusual results are revealed. The Dirac delta potential as a limit of the modified Poschl-Teller potential is also discussed. The problem is also shown to be mapped into that of massless fermions subject to classical topological scalar and pseudoscalar potentials. Copyright (C) EPLA, 2007.