| Autor: |
Yong-Fei, Jia, Huai-Ming, Guo, Ji-Hong, Qin, Zi-Yu, Chen, Shi-Ping, Feng |
| Předmět: |
|
| Zdroj: |
Chinese Physics B; Sep2013, Vol. 22 Issue 9, p090308-090312, 5p |
| Abstrakt: |
We study the topological properties of a one-dimensional (1D) hardcore Bose—Fermi mixture using the exact diagonalization method. We firstly add a hardcore boson to a fermionic system and by examining the edge states we find that the quasi-particle manifests the topological properties of the system. Then we study a mixture with 7 fermions and 1 boson. We find that the mixture also exhibits topological properties and its behaviors are similar to that of the corresponding fermionic system. We present a qualitative explanation to understand such behaviors using the mapping between a hardcore boson and a spinless fermion. These results show the existence of topological properties in a 1D hardcore Bose—Fermi mixture and may be realized using cold atoms trapped in optical lattices experimentally. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
