论文标题
磁性单极诱导的原子超级晶格中的极性子
Magnetic monopole induced polarons in atomic superlattices
论文作者
论文摘要
磁性单极已被实现为凝结物和超速原子平台中的新兴准粒子，对单极和不同磁准粒子之间的耦合效应的兴趣越来越不断提高。在这项工作中，研究了原子伪链链之间的单极和镁之间的相互作用效应。我们透露，单极可以在顺磁链中激发虚拟镁云，从而产生一种新型的极性偏极，即单极式极性极化（MCP）。 MCP由单子作为杂质核心和虚拟木元素激发作为敷料云而组成。磁蛋白敷料有助于狄拉克弦激发，并影响单极跳跃。这引起了MCP的抗捕获效应，这是指与普通极性子的自我捕获相比，敷料增强了MCP的活动性。此外，在北部和南部单极的同时掺杂下，异质性双旋翼也存在。异质双极具有由两个相同的杂质组成的内部自由度。我们的调查阐明了对杂质核心与敷料云之间的耦合的了解
Magnetic monopoles have been realized as emergent quasiparticles in both condensed matter and ultracold atomic platforms, with growing interests in the coupling effects between the monopole and different magnetic quasiparticles. In this work, interaction effects between monopoles and magnons are investigated for an atomic pseudospin chain. We reveal that the monopole can excite a virtual magnon cloud in the paramagnetic chain, thereby giving rise to a new type of polaron, the monopole-cored polaron (McP). The McP is composed of the monopole as the impurity core and the virtual magnon excitation as the dressing cloud. The magnon dressing facilitates the Dirac string excitation and impacts the monopole hopping. This induces an anti-trapping effect of the McP, which refers to the fact that the dressing enhances the mobility of the McP, in contrast to the self-trapping of the common polarons. Moreover, heterogeneous bipolarons are shown to exist under the simultaneous doping of a north and a south monopole. The heterogeneous bipolaron possesses an inner degree of freedom composed of two identical impurities. Our investigation sheds light on the understanding of how the coupling between the impurity core and the dressing cloud can engineer the property of the polaron
