AI 中文总结
本文研究三角梯子中硬核偶极子的任意子凝聚,修正J₁-J₂模型可描述该体系,发现平衡任意子凝聚对精确可解条件的偏离具有鲁棒性,还揭示了其附近的多种量子相及相变。
AI 中文摘要
三角梯子中的硬核偶极子是研究阻挫与长程相互作用之间相互作用的优异平台,可通过著名的J₁-J₂模型的修正版本很好地描述。有趣的是,正如《物理评论快报》109,227203(2012)所示,该模型在特定可精确求解的条件下呈现出一种被称为任意子凝聚的特殊相。我们证明,平衡的任意子凝聚对偏离精确可解条件具有鲁棒性,并讨论了偶极取向和梯子几何结构的要求,以实现三角梯子中偶极子的任意子凝聚,其任意子性质可通过飞行时间测量轻松揭示。此外,精确可解点附近的基态物理非常丰富,包括从任意子凝聚到手性超流体的相变,以及自束缚莫特绝缘体、键序绝缘体和手性液体。
英文摘要
Hard-core dipoles in triangular ladders are an excellent platform for the study of the interplay between frustration and long-range interactions, well described by a modified version of the celebrated $J_1$--$J_2$ model. Interestingly, as shown in [Phys. Rev. Lett. 109, 227203 (2012)], such a model presents, for particular exactly-solvable conditions, a peculiar phase known as an anyon condensate. We show that balanced anyon condensates are robust against deviations from the exactly-solvable conditions, and discuss the requirements for dipolar orientation and ladder geometry, to realize anyon condensates of dipoles in triangular ladders, whose anyonic nature may be easily revealed by time-of-flight measurements. Moreover, the ground-state physics in the vicinity of the exactly-solvable point is very rich, including a phase transition from anyon condensates into chiral superfluids, and self-bound Mott insulators, bond-order insulators, and chiral liquids.
Comments8 pages, 4 figures