Open AccessЭффективные взаимодействия, индуцированные спин-орбитальной связью в сверхпроводящих нанопроволоках в режиме сильных корреляций
Author(s) -
А.О. Злотников,
С.В. Аксенов,
М.С. Шустин
Publication year - 2020
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2020.09.49768.36h
Subject(s) - superconductivity , condensed matter physics , physics , nanowire , majorana , perturbation theory (quantum mechanics) , coulomb , quantum mechanics , boundary value problem , coupling parameter , operator (biology) , electron , quantum electrodynamics , chemistry , biochemistry , repressor , transcription factor , gene
In the second order of the operator form of the perturbation theory, the effective interactions in a superconducting nanowire have been obtained at the strong electron correlations, when the spin–orbit coupling parameter is comparable with the hopping integral. Using the exact diagonalization technique, in short nanowires with the open boundary conditions at the strong Coulomb repulsion, the excitations corresponding to the Majorana edge states with the energy below the value of a bulk superconducting gap have been demonstrated.