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Title: Self-organized bosonic domain walls

Abstract

Hard-core 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 ρ = 1 2 filling. This “self-organized domain wall” separates two charge-density-wave 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

Authors:
; ; ; ORCiD logo; ; ORCiD logo;
Publication Date:
Research Org.:
Univ. of California, Davis, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Natural Science Foundation of China (NSFC)
OSTI Identifier:
1595178
Alternate Identifier(s):
OSTI ID: 1597052
Grant/Contract Number:  
SC0014671
Resource Type:
Published Article
Journal Name:
Physical Review Research
Additional Journal Information:
Journal Name: Physical Review Research Journal Volume: 2 Journal Issue: 1; Journal ID: ISSN 2643-1564
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhu, Xingchuan, Dong, Shiying, Lin, Yang, Mondaini, Rubem, Guo, Huaiming, Feng, Shiping, and Scalettar, Richard T. Self-organized bosonic domain walls. United States: N. p., 2020. Web. doi:10.1103/PhysRevResearch.2.013085.
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Zhu, Xingchuan, Dong, Shiying, Lin, Yang, Mondaini, Rubem, Guo, Huaiming, Feng, Shiping, & Scalettar, Richard T. Self-organized bosonic domain walls. United States. https://doi.org/10.1103/PhysRevResearch.2.013085
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Zhu, Xingchuan, Dong, Shiying, Lin, Yang, Mondaini, Rubem, Guo, Huaiming, Feng, Shiping, and Scalettar, Richard T. Mon . "Self-organized bosonic domain walls". United States. https://doi.org/10.1103/PhysRevResearch.2.013085.
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@article{osti_1595178,
title = {Self-organized bosonic domain walls},
author = {Zhu, Xingchuan and Dong, Shiying and Lin, Yang and Mondaini, Rubem and Guo, Huaiming and Feng, Shiping and Scalettar, Richard T.},
abstractNote = {Hard-core 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 ρ=12 filling. This “self-organized domain wall” separates two charge-density-wave 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 = {10.1103/PhysRevResearch.2.013085},
journal = {Physical Review Research},
number = 1,
volume = 2,
place = {United States},
year = {Mon Jan 27 00:00:00 EST 2020},
month = {Mon Jan 27 00:00:00 EST 2020}
}
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https://doi.org/10.1103/PhysRevResearch.2.013085
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