标题： 蜂窝晶格中的玻色子边缘态 显示英文标题

标题： Bosonic edge states in gapped honeycomb lattices

摘要： 通过在有隙蜂窝晶格中的玻色子量子蒙特卡洛模拟，我们展示了玻色子边缘态的存在。 对于单层蜂窝晶格，可以通过在边界最外层的位点上施加局域势，使玻色子边缘态出现、穿过能隙并与体态合并。 在双层蜂窝晶格中，展示了在半填充情况下穿越能隙的玻色子边缘态。 通过伪贝里曲率讨论了玻色子边缘态的拓扑起源。 这些结果将模拟超冷玻色子被囚禁在蜂窝光晶格中对这些奇特的玻色子边缘态的实验研究。 显示英文摘要

摘要： By quantum Monte Carlo simulations of bosons in gapped honeycomb lattices, we show the existence of bosonic edge states. For single layer honeycomb lattice, bosonic edge states can be controlled to appear, cross the gap and merge into bulk states by an on-site potential applied on the outmost sites of the boundary. On bilayer honeycomb lattice, bosonic edge state traversing the gap at half filling is demonstrated. The topological origin of the bosonic edge states is discussed with pseudo Berry curvature. The results will simulate experimental studies of these exotic bosonic edge states with ultracold bosons trapped in honeycomb optical lattices.