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
收藏
页数：14
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