Coupled system of Dirac fermions with different Fermi velocities via composites of SUSY operators

0559101 - ÚJF 2023 RIV NL eng J - Článek v odborném periodiku
Jakubský, Vít - Zelaya, Kevin
Coupled system of Dirac fermions with different Fermi velocities via composites of SUSY operators.
Physics Letters. A. Roč. 435, MAY (2022), č. článku 128053. ISSN 0375-9601. E-ISSN 1873-2429
Grant CEP: GA ČR GA19-07117S; GA MŠMT EF18_053/0017163
Institucionální podpora: RVO:61389005
Klíčová slova: Dirac fermions * Dirac materials * Coupled systems * Supersymmetry * Fermi velocity * Bound states in the continuum
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impakt faktor: 2.6, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.physleta.2022.128053

We use the framework of supersymmetric transformations in the construction of coupled systems of Dirac fermions. Its energy operator is a composite of the generators of the associated superalgebra, and the two coupled Dirac fermions acquire different Fermi velocities. We discuss in detail the peculiar spectral properties of the new system. The emergent phenomena like level crossing or generation of bound states in the continuum (BICs) are illustrated in two explicit examples.
Trvalý link: https://hdl.handle.net/11104/0332520