Characterizing topological excitations of a long-range Heisenberg model with trapped ions
Characterizing topological excitations of a long-range Heisenberg model with trapped ions
复制标题
表征具有捕获离子的长程海森堡模型的拓扑激发
DOI:
10.1103/physrevb.105.l241103
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发表时间:
2022
影响因子:
3.7
通讯作者:
Knap, Michael
中科院分区:
文献类型:
--
作者:
Birnkammer, Stefan;Bohrdt, Annabelle;Grusdt, Fabian;Knap, Michael
Realizing and characterizing interacting topological phases in synthetic quantum systems is a formidable challenge. Here, we propose a Floquet protocol to realize the antiferromagnetic Heisenberg model with power-law decaying interactions. Based on analytical and numerical arguments, we show that this model features a quantum phase transition from a liquid to a valence bond solid that spontaneously breaks lattice translational symmetry and is reminiscent of the Majumdar-Ghosh state. The different phases can be probed dynamically by measuring the evolution of a fully dimerized state. We moreover introduce an interferometric protocol to characterize the topological excitations and the bulk topological invariants of the interacting many-body system.
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