Berry phases and zero-modes in toroidal topological insulator
Arquivos
Data
2016-06
Título da Revista
ISSN da Revista
Título de Volume
Editor
The European Physical Journal B
Resumo
An effective Hamiltonian describing the surface states of a toroidal topological insulator is obtained, and it is shown to support both bound-states and charged zero-modes. Actually, the spin connection induced by the toroidal curvature can be viewed as an position-dependent effective vector potential, which ultimately yields the zero-modes whose wave-functions harmonically oscillate around the toroidal surface. In addition, two distinct Berry phases are predicted to take place by the virtue of the toroidal topology.
Descrição
Palavras-chave
Materials, Solid State