Phases of dipolar bosons in a bilayer geometry

被引：18

作者：

Cinti, Fabio ^{[1
,2
]}

Wang, Daw-Wei ^{[3
,4
]}

Boninsegni, Massimo ^{[5
]}

机构：

[1] Natl Inst Theoret Phys NITheP, ZA-7600 Stellenbosch, South Africa

[2] Univ Stellenbosch, Inst Theoret Phys, ZA-7600 Stellenbosch, South Africa

[3] Natl Tsing Hua Univ, Dept Phys, Hsinchu, Taiwan

[4] Natl Ctr Theoret Sci, Div Phys, Hsinchu, Taiwan

[5] Univ Alberta, Dept Phys, Edmonton, AB, Canada

来源：

PHYSICAL REVIEW A | 2017年 / 95卷 / 02期

关键词：

BOSE-EINSTEIN CONDENSATION; 2-DIMENSIONAL SYSTEMS; POLAR-MOLECULES; EXCITONS;

D O I：

10.1103/PhysRevA.95.023622

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study, by first-principles computer simulations, the low-temperature phase diagram of bosonic dipolar gases in a bilayer geometry as a function of the two control parameters, i. e., the in-plane density and the interlayer distance. We observe four distinct phases, namely, paired and decoupled superfluids, as well as a crystal of dimers and one consisting of two aligned crystalline layers. A direct quantum phase transition from a dimer crystal to two independent superfluids is observed in a relatively wide range of parameters. No supersolid phase is predicted for this system.

引用

页数：6