Fermion bound states in geometrically deformed backgrounds  

作　　者：D.Bazeia A.Mohammadi D.C.Moreira 

机构地区：[1]Departamento de Física,Universidade Federal da Paraíba [2]Departamento de Física,Universidade Federal de Pernambuco [3]Unidade Acadêmica de Física,Universidade Federal de Campina Grande

出　　处：《Chinese Physics C》2019年第1期1-8,共8页中国物理C（英文版）

基　　金：the Brazilian agencies CAPES and CNPq for financial support;Universidade Federal de Pernambuco for Qualis A funding

摘　　要：This work deals with the behavior of fermions in the background of kinklike structures in the twodimensional spacetime. The kinklike structures appear from bosonic scalar field models that engender distinct profiles and interact with the fermion fields via the standard Yukawa coupling. We first consider two models that engender parity symmetry, one leading to the exclusion of fermion bound states, and the other to the inclusion of bound states, when the parameter that controls the bosonic structure varies from zero to unity. We then investigate a third model where the kinklike solution explicitly breaks parity symmetry, leading to fermion bound states that are spatially asymmetric.This work deals with the behavior of fermions in the background of kinklike structures in the twodimensional spacetime. The kinklike structures appear from bosonic scalar field models that engender distinct profiles and interact with the fermion fields via the standard Yukawa coupling. We first consider two models that engender parity symmetry, one leading to the exclusion of fermion bound states, and the other to the inclusion of bound states, when the parameter that controls the bosonic structure varies from zero to unity. We then investigate a third model where the kinklike solution explicitly breaks parity symmetry, leading to fermion bound states that are spatially asymmetric.

关 键 词：TOPOLOGICAL DEFECT FERMION interaction BOUND state 

分 类 号：O4[理学—物理]