论文标题

伪 - 温米氏绝缘子中的量子淬灭

Quantum quenches in a pseudo-Hermitian Chern insulator

论文作者

He, Peng, Zhu, Yan-Qing, Wang, Jian-Te, Zhu, Shi-Liang

论文摘要

我们建议通过量子淬灭动力学揭示伪 - 温米特氏绝缘绝缘子的拓扑。伪 - 温米特氏奇绝缘子的Bloch Hamiltonian是根据Q构造的Pauli矩阵定义的,这与变形代数的表示有关。我们显示了伪 - 温米特阶段的宽大表面二元性,然后进一步在静态带拓扑和淬灭动力学之间建立了混凝土关系,这是在时间平均的旋转纹理方面。结果也被普遍为完全非平衡的情况,在该情况下,Queench进化受浮雕伪 - 温米特式汉密尔顿的控制。此外,我们提出了一个可能的方案,以实现双层晶格中看似具有挑战性的模型,并通过双重夸张协议检测动态。

We propose to uncover the topology of a pseudo-Hermitian Chern insulator by quantum quench dynamics. The Bloch Hamiltonian of the pseudo-Hermitian Chern insulator is defined in the basis of the q-deformed Pauli matrices, which are related to the representation of the deformed algebras. We show the bulk-surface duality of the pseudo-Hermitian phases, then further build a concrete relation between the static band topology and quench dynamics, in terms of the time-averaged spin textures. The results are also generalized into a fully nonequilibrium case where the postquench evolution is governed by a Floquet pseudo-Hermitian Hamiltonian. Furthermore, we propose a possible scheme to realize the seemingly challenging model in a bilayer lattice and detect the dynamics with a double-quench protocol.

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