发表机构
Fudan University; Westlake University; FORTH; University of Crete; Julius-Maximilians-Universität Würzburg; Russian Quantum Center（复旦大学; 西湖大学; 希腊研究与技术基金会; 克里特大学; 维尔茨堡大学; 俄罗斯量子中心）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究在囚禁极化激元凝聚体三元组中，通过调节泵浦功率和全光控制，确定性产生并切换三种拓扑涡旋态，实现无需干涉测量的手性光发射与按需轨道角动量控制。
AI 中文摘要
我们展示了在囚禁激子-极化激元凝聚体三元组中，通过动量空间发射分布直接读取态，实现三元拓扑不同涡旋态的确定性产生和全光切换。调节非共振泵浦功率可控制耗散耦合的符号，从而在铁磁同相态和两个具有全局相位缠绕的阻挫态之间进行选择。零缠绕铁磁态在低动量下具有无结构的远场发射，并在狄拉克点形成涡旋-反涡旋阵列，反映了C_3v全局对称性。两个具有±2π缠绕的阻挫态可通过控制光束按需激活，并产生选择性局域于K或K'点的不同三角形发射图案。尽管这三个态共享相同的实空间发射分布，但它们的动量空间光致发光谱可明确区分它们，无需干涉测量即可揭示手性。这实现了使用独立于共振相位或轨道角动量印记的泵浦进行按需轨道角动量控制，确立了凝聚体三元组作为基于三元逻辑基础的可重构手性光产生的紧凑平台。
英文摘要
We present the deterministic generation and all-optical switching of ternary topologically distinct vortex states in a triad of trapped exciton-polariton condensates with direct state readout from momentum-space emission distribution. Tuning the non-resonant pump power controls the sign of the dissipative coupling, selecting between a ferromagnetic in-phase state and two frustrated states with global phase winding. The zero-winding ferromagnetic state has unstructured far-field emission at low momenta and forms vortex-antivortex arrays at the Dirac points, reflecting the C_3v global symmetry. The two frustrated states of +-2pi winding can be activated on-demand by a control beam and produce different triangular emission patterns selectively localized at the K or K' points. Although all three states share identical real-space emission distributions, their momentum-space photoluminescence profiles distinguish them unambiguously, revealing the chirality without the need for interferometry. This enables on-demand orbital angular momentum control using a pump independent of resonant phase or OAM imprinting, establishing condensate triads as a compact platform for reconfigurable chiral light generation operating on a ternary logic basis.
Comments11 pages 10 figures
