Interaction-induced first-order correlation between spatially separated one-dimensional dipolar fermions

被引：18

作者：

Chang, Chi-Ming ^{[1
,2
]}

Shen, Wei-Chao ^{[2
]}

Lai, Chen-Yen ^{[2
]}

Chen, Pochung ^{[2
,3
]}

Wang, Daw-Wei ^{[2
,3
]}

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan

[3] Natl Ctr Theoret Sci, Inst Phys, Hsinchu 300, Taiwan

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 05期

关键词：

fermion systems; ground states; Luttinger liquid; renormalisation; tunnelling; COULOMB DRAG; HUBBARD-MODEL; QUANTUM; FERROMAGNETISM; GAS; INTERFERENCE;

D O I：

10.1103/PhysRevA.79.053630

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We calculate the ground-state properties of fermionic dipolar atoms or molecules in a one-dimensional double-tube potential by using the Luttinger liquid theory and the density matrix renormalization-group calculation. When the external field is applied near a magic angle with respect to the double-tube plane, the long-ranged dipolar interaction can generate a spontaneous correlation between fermions in different tubes, even when the bare intertube tunneling rate is negligibly small. Such interaction-induced correlation strongly enhances the contrast of the interference fringes and therefore can be easily observed in the standard time-of-flight experiment.

引用

页数：6

共 43 条

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