| Texto completo | |
| Autor(es): |
Teixeira, Raphael L. R. C.
[1]
;
Dias da Silva, V, Luis G. G.
Número total de Autores: 2
|
| Afiliação do(s) autor(es): | [1] V, Univ Sao Paulo, Inst Fis, CF 66318, BR-05315970 Sao Paulo, SP - Brazil
Número total de Afiliações: 1
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW RESEARCH; v. 3, n. 3 JUL 2 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Parafermionic zero modes, Z(n)-symmetric generalizations of the well-known Z(2) Majorana zero modes, can emerge as edge states in topologically nontrivial strongly correlated systems displaying fractionalized excitations. In this paper, we investigate how signatures of parafermionic zero modes can be detected by its effects on the properties of a quantum dot tunnel-coupled to a system hosting such states. Concretely, we consider a strongly correlated one-dimensional fermionic model supporting Z(4) parafermionic zero modes coupled to an interacting quantum dot at one of its ends. By using a combination of density matrix renormalization group calculations and analytical approaches, we show that the dot's zero-energy spectral function and average occupation numbers can be used to distinguish between trivial, Z(4) and 2 x Z(2) phases of the system. The present work opens the prospect of using quantum dots as detection tools to probe nontrivial topological phases in strongly correlated systems. (AU) | |
| Processo FAPESP: | 19/11550-8 - Modos parafermiônicos em sistemas de elétrons correlacionados |
| Beneficiário: | Raphael Levy Ruscio Castro Teixeira |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |