Self-organized bosonic domain walls

Self-organized bosonic domain walls
复制标题

自组织玻色子畴壁

DOI:
10.1103/physrevresearch.2.013085
复制
发表时间:
2019-07
影响因子:
4.2
通讯作者:
Scalettar Richard T.
Scalettar Richard T.
中科院分区:
--
文献类型:
--
作者:
Zhu Xingchuan;Dong Shiying;Lin Yang;Mondaini Rubem;Guo Huaiming;Feng Shiping;Scalettar Richard T.

文献摘要

参考文献

被引文献

相似文献

采用精确的数值模拟方法研究了锯齿形边缘蜂窝晶格带上的硬核玻色子。我们绘制了不同宽度的带的相图,其中包含超流和绝缘体相在不同的填充。我们发现,电荷畴壁是积极有利的,在形成鲜明对比的一组网站上的一个单一的子晶格的二分几何在$\rho=\frac{1}{2}$填充的更典型的占领。这种“自组织畴壁”将具有相反Berry曲率的两个电荷密度波(CDW)区域分开。随着畴壁拓扑性质的改变,超流输运沿畴壁向下发生。我们的结果提供了一个具体的背景下观察玻色子拓扑现象,并可以在实验上模拟使用玻色子冷原子被困在设计的光学晶格。
Hardcore bosons on honeycomb lattice ribbons with zigzag edges are studied using exact numerical simulations. We map out the phase diagrams of ribbons with different widths, which contain superfluid and insulator phases at various fillings. We show that charge domain walls are energetically favorable, in sharp contrast to the more typical occupation of a set of sites on a single sublattice of the bipartite geometry at $\rho=\frac{1}{2}$ filling. This `self-organized domain wall' separates two charge-density-wave (CDW) regions with opposite Berry curvatures. Associated with the change of topological properties, superfluid transport occurs down the domain wall. Our results provide a concrete context to observe bosonic topological phenomena and can be simulated experimentally using bosonic cold atoms trapped in designed optical lattices.
DOI: 10.1038/nature08482
发表时间: 2009-11-05
期刊: NATURE
影响因子: 64.8
作者:
Bakr, Waseem S.;Gillen, Jonathon I.;Greiner, Markus
通讯作者: Greiner, Markus
DOI: 10.1103/physrevx.3.031010
发表时间: 2013-08-26
期刊: PHYSICAL REVIEW X
影响因子: 12.5
作者:
Assaad, Fakher F.;Herbut, Igor F.
通讯作者: Herbut, Igor F.
DOI: 10.1103/physrevlett.97.087209
发表时间: 2006-08-25
影响因子: 8.6
作者:
Batrouni, G. G.;Herbert, F.;Scalettar, R. T.
通讯作者: Scalettar, R. T.
DOI: 10.1103/physrevlett.101.087204
发表时间: 2008-08-22
影响因子: 8.6
作者:
Semenoff, G. W.;Semenoff, V.;Zhou, Fei
通讯作者: Zhou, Fei
DOI: 10.1103/revmodphys.83.1405
发表时间: 2011-12-01
影响因子: 44.1
作者:
Cazalilla, M. A.;Citro, R.;Rigol, M.
通讯作者: Rigol, M.