Numerical studies of ground-state fidelity of the Bose-Hubbard model

被引：21

作者：

Lacki, Mateusz ^{[1
]}

Damski, Bogdan ^{[1
]}

Zakrzewski, Jakub ^{[1
,2
]}

机构：

[1] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

[2] Jagiellonian Univ, Mark Kac Complex Syst Res Ctr, PL-30059 Krakow, Poland

来源：

PHYSICAL REVIEW A | 2014年 / 89卷 / 03期

关键词：

MATRIX RENORMALIZATION-GROUP; QUANTUM; SUPERFLUID; INSULATOR; TRANSITION;

D O I：

10.1103/PhysRevA.89.033625

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compute ground-state fidelity of the one-dimensional Bose-Hubbard model at unit filling factor. To this aim, we apply the density matrix renormalization group algorithm to systems with open and periodic boundary conditions. We find that fidelity differs significantly in the two cases and study its scaling properties in the quantum critical regime.

引用

页数：9

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