Superfluid-insulator transition in strongly disordered one-dimensional systems

被引：12

作者：

Yao, Zhiyuan ^{[1
]}

Pollet, Lode ^{[2
,3
]}

Prokof'ev, N. ^{[1
,4
]}

Svistunov, B. ^{[1
,4
,5
]}

机构：

[1] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[2] Univ Munich, Arnold Sommerfeld Ctr Theoret Phys, Dept Phys, Theresienstr 37, D-80333 Munich, Germany

[3] Univ Munich, Ctr NanoSci, Theresienstr 37, D-80333 Munich, Germany

[4] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia

[5] Zhejiang Univ Technol, Wilczek Quantum Ctr, Hangzhou 310014, Zhejiang, Peoples R China

来源：

NEW JOURNAL OF PHYSICS | 2016年 / 18卷

基金：

美国国家科学基金会;

关键词：

1D quantum phase transition; scratched-XY universality class; disordered Bose-Hubbard model; ground-state phase diagram; QUANTUM FLUIDS; LUTTINGER LIQUID; MODEL; GAS; LOCALIZATION;

D O I：

10.1088/1367-2630/18/4/045018

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an asymptotically exact renormalization-group theory of the superfluid-insulator transition in one-dimensional (1D) disordered systems, with emphasis on an accurate description of the interplay between the Giamarchi-Schulz (instanton-anti-instanton) and weak-link (scratched-XY) criticalities. Combining the theory with extensive quantum Monte Carlo simulations allows us to shed new light on the ground-state phase diagram of the 1D disordered Bose-Hubbard model at unit filling.

引用

页数：14

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