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arXiv 2408.04451cond-mat.str-elcond-mat.stat-mechhep-thmath-phmath.MP
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拓扑有序系统的边缘模式作为涌现可积流:非线性量子流体动力学中代数结构的鲁棒性

Edge modes of topologically ordered systems as emergent integrable flows: Robustness of algebraic structures in nonlinear quantum fluid dynamics

Yoshiki Fukusumi

AI总结:

本文将拓扑有序系统的边缘模式重新解释为涌现可积流,把任意子凝聚与可积模型及重整化群流联系起来,并证明体-边对应在无关扰动下仍具鲁棒性,为厄米与非厄米系统中的边缘模式动力学分析提供了统一范式。

摘要:

近几十年来,人们逐渐认识到,一大类拓扑有序系统的边缘模式由体-边对应和任意子凝聚所支配。前者已被多次研究,因为它可以概括为共形场论与拓扑量子场论之间的对应关系;而后者近年来受到更多关注,因为它表明人们可以将理论从一个可凝聚或 Witt 等价的理论变形到另一个。我们将这一现象重新解释为拓扑有序系统边缘处可积流的出现。通过从这一视角重新审视已有现象,可以将任意子凝聚与现有的可积模型形式体系及其重整化群流联系起来。此外,我们观察到即使在边缘处存在无关扰动的情况下,体-边对应仍然具有鲁棒性。这一表述使人们能够在量子流体(非线性)动力学层面分析边缘模式,甚至在非厄米系统中分析混合态拓扑序。此外,特别是在研究一类非厄米系统时,我们表明有必要从根本上重新审视 Rogers-Ramanujan 型恒等式,将其视为隐藏的(分数)超对称模型的出现,而该模型与弦场论有密切关系。我们的观点可以提供一个统一的范式,在动力学层面上研究拓扑有序系统的边缘模式,且可能同时适用于厄米和非厄米系统。

英文摘要:

In these decades, it has been gradually established that edge modes of a wide class of topologically ordered systems are governed by the bulk-edge correspondence and anyon condensation. The former has been studied many times because it can be summarized as the correspondence between conformal field theory and topological quantum field theory, but the latter has captured attention more recently because it suggests that one can deform the theories from one to another condensable or Witt equivalent. We reinterpret this phenomenon as the appearance of integrable flow at the edges of a topologically ordered system. By revisiting the existing phenomena from this view, one can relate the anyon condensation to the existing formalism of integrable models and their renormalization group flow. Moreover, we observe the robustness of the bulk-edge correspondence even under the existence of irrelevant perturbations at the edges. This formulation can enable one to analyze edge modes at the level of quantum fluid (non-linear) dynamics, or mixed state topological order even in non-Hermitian systems. Moreover, especially in the study of a class of non-Hermitian systems, we show a fundamental necessity to revisit Rogers-Ramanujan type identities as an appearance of the hidden (fractional) supersymmetric model which has a close relation to string field theories. Our view can give a unified paradigm to study edge modes of topologically ordered systems at the level of their dynamics potentially in both Hermitian and non-Hermitian systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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