Dipolar Molecules in Optical Lattices

被引：87

作者：

Sowinski, Tomasz ^{[1
,2
]}

Dutta, Omjyoti ^{[2
]}

Hauke, Philipp ^{[2
]}

Tagliacozzo, Luca ^{[2
]}

Lewenstein, Maciej ^{[2
,3
]}

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] ICFO Inst Photon Sci, Castelldefels 08860, Barcelona, Spain

[3] ICREA, E-08010 Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 11期

关键词：

ATOMS; TRANSITION; SUPERFLUID; INSULATOR; GAS;

D O I：

10.1103/PhysRevLett.108.115301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the extended Bose-Hubbard model describing an ultracold gas of dipolar molecules in an optical lattice, taking into account all on-site and nearest-neighbor interactions, including occupation-dependent tunneling and pair tunneling terms. Using exact diagonalization and the multiscale entanglement renormalization ansatz, we show that these terms can destroy insulating phases and lead to novel quantum phases. These considerable changes of the phase diagram have to be taken into account in upcoming experiments with dipolar molecules.

引用

页数：5

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