Ferromagnetism in a two-component Bose-Hubbard model with synthetic spin-orbit coupling
Ferromagnetism in a two-component Bose-Hubbard model with synthetic spin-orbit coupling
复制标题
具有合成自旋轨道耦合的二元 Bose-Hubbard 模型中的铁磁性
DOI:
10.1103/physreva.89.043611
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发表时间:
2013-08
影响因子:
2.9
通讯作者:
Wang, Xiaoqun
中科院分区:
文献类型:
--
作者:
Hu, Shijie;Chang, Jun;Zhang, Ping;Wang, Xiaoqun
We study the effect of the synthetic spin-orbit coupling in a two-component Bose-Hubbard model in one dimension by employing the density-matrix renormalization group method. A ferromagnetic long-range order emerges in both Mott-insulator and superfluid phases resulting from the spontaneous breaking of the Z(2) symmetry, when the spin-orbit coupling term becomes comparable to the hopping kinetic energy and the intercomponent interaction is smaller than the intracomponent one as well. This effect is expected to be detectable with the present realization of the synthetic spin-orbit coupling in experiments.
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