Observation of a Disordered Bosonic Insulator from Weak to Strong Interactions

被引：97

作者：

D'Errico, Chiara ^{[1
,2
,3
]}

Lucioni, Eleonora ^{[1
,2
,3
]}

Tanzi, Luca ^{[1
,2
]}

Gori, Lorenzo ^{[1
,2
]}

Roux, Guillaume ^{[4
]}

McCulloch, Ian P. ^{[5
]}

Giamarchi, Thierry ^{[6
]}

Inguscio, Massimo ^{[1
,2
,7
]}

Modugno, Giovanni ^{[1
,2
,3
]}

机构：

[1] Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy

[2] Univ Florence, Dipartimento Fis & Astron, I-50019 Sesto Fiorentino, Italy

[3] CNR, Ist Nazl Ott, I-50019 Sesto Fiorentino, Italy

[4] Univ Paris 11, LPTMS, CNRS, F-91405 Orsay, France

[5] Univ Queensland, Ctr Engn Quantum Syst, Brisbane, Qld 4072, Australia

[6] Univ Geneva, DPMC MaNEP, CH-1211 Geneva, Switzerland

[7] INRIM, I-10135 Turin, Italy

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 09期

基金：

欧洲研究理事会;

关键词：

BOSE-EINSTEIN CONDENSATE; ANDERSON LOCALIZATION; PHASE-TRANSITION; OPTICAL LATTICE; GASES;

D O I：

10.1103/PhysRevLett.113.095301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We employ ultracold atoms with controllable disorder and interaction to study the paradigmatic problem of disordered bosons in the full disorder-interaction plane. Combining measurements of coherence, transport and excitation spectra, we get evidence of an insulating regime extending from weak to strong interaction and surrounding a superfluidlike regime, in general agreement with the theory. For strong interaction, we reveal the presence of a strongly correlated Bose glass coexisting with a Mott insulator.

引用

页数：5

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