论文标题
无旋转$ P $ - 轨道的拓扑阶段
Topological phases of spinless $p$-orbital fermions in zigzag optical lattices
论文作者
论文摘要
由实验[st-jean {\ it等人}。的动机，自然光子。 {\ bf 11}，651（2017）]在具有集体光子模式的拓扑阶段中，我们在Polariton Micropillars的Zigzag链中，我们研究了无旋转$ P $ P $ - 轨道费米，并在当地的绝型式啤酒花和$ P_X $和$ P_Y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ p_y $ bands。我们表明，在存在局部跳跃的情况下，在锯齿形光学晶格中的无旋转$ p $ - 带费可以模仿相互作用的su-schrieffer-heeger模型和有效的横向场。我们通过分析和数值讨论模型的基层阶段和量子相变。这项工作提供了一个简单的方案，以模拟光学晶格中多体系统的拓扑阶段和淬灭动态。
Motivated by the experiment [St-Jean {\it et al}., Nature Photon. {\bf 11}, 651 (2017)] on topological phases with collective photon modes in a zigzag chain of polariton micropillars, we study spinless $p$-orbital fermions with local interorbital hoppings and repulsive interactions between $p_x$ and $p_y$ bands in zigzag optical lattices. We show that spinless $p$-band fermions in zigzag optical lattices can mimic the interacting Su-Schrieffer-Heeger model and the effective transverse field Ising model in the presence of local hoppings. We analytically and numerically discuss the ground-state phases and quantum phase transitions of the model. This work provides a simple scheme to simulate topological phases and the quench dynamics of many-body systems in optical lattices.
