On the Dirac equation with PT-symmetric potentials in the presence of position-dependent mass

The relativistic problem of fermions subject to a PT-symmetric potential in the presence of position-dependent mass is reinvestigated. The influence of the PT-symmetric potential in the continuity equation and in the orthonormalization condition are analyzed. In addition, a misconception diffused in...

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Bibliographic Details
Published inPhysics letters. A Vol. 375; no. 25; pp. 2510 - 2512
Main Author Castro, L.B.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 20.06.2011
Subjects
Boundary conditions
Continuity equation
Diffusion
Dirac equation
Fermions
Non-Hermitian potentials
Platinum
PT symmetry
Solid state physics
Non-Hermitian potentials
Dirac equation
PT symmetry
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Summary:The relativistic problem of fermions subject to a PT-symmetric potential in the presence of position-dependent mass is reinvestigated. The influence of the PT-symmetric potential in the continuity equation and in the orthonormalization condition are analyzed. In addition, a misconception diffused in the literature on the interaction of neutral fermions is clarified. ► The quadricurrent is not conserved for PT-symmetric potentials. ► The orthonormal condition is consistent depending on the suitable boundary condition. ► A misconception on the interaction of neutral fermions is clarified.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2011.05.029