发表机构
College of Physical Sciences and Engineering, University Mohammed VI Polytechnic; Institut für Theoretische Physik, Universität Tübingen; Jülich Supercomputing Centre, Forschungszentrum Jülich; Department of Chemistry, Princeton University（物理科学与工程学院，穆罕默德六世polytechnic大学; 理论物理研究所，蒂宾根大学; 于利希超级计算中心，于利希研究中心; 化学系，普林斯顿大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究通过螺旋度实现超强拉比分裂与量子真空修饰的解耦，利用手性腔与回旋共振的耦合，揭示两种耦合 regime 的差异，为调控腔量子材料的极化激元与量子关联提供新途径。
AI 中文摘要
极化激元和量子真空修饰通常被视为超强光-物质耦合的相互关联结果。本文表明，可通过螺旋度对二者进行独立调控。研究考虑回旋共振与支持单一圆偏振模式的手性腔耦合，当腔场螺旋度与回旋运动匹配时，光与物质间发生共振能量交换，产生大的拉比分裂和常规极化激元，而基态保持裸真空；反转磁场会反转回旋运动但不改变腔结构，此时同一模式通过异常过程耦合，成对产生和湮灭光与物质激发，常规极化激元反交叉消失，基态出现压缩和虚激发。这两种 regime 表明，光谱杂化和量子真空修饰是超强耦合的不同表现，大的拉比分裂本身并不意味着存在修饰的量子真空，因此螺旋度为调控腔量子材料中作为独立资源的极化激元形成和量子关联提供了途径。
英文摘要
Polaritons and quantum vacuum dressing are usually regarded as intertwined consequences of ultrastrong light-matter coupling. Here we show that they can be controlled independently through helicity. We consider cyclotron resonance coupled to a chiral cavity supporting a single circular mode. When the helicity of the cavity field matches the cyclotron motion, energy is exchanged resonantly between light and matter, producing a large Rabi splitting and conventional polaritons, while the ground state remains the bare vacuum. Reversing the magnetic field reverses the cyclotron motion without changing the cavity. The same mode then couples through anomalous processes that create and annihilate light and matter excitations in pairs: the conventional polaritonic anticrossing disappears, while the ground state acquires squeezing and virtual excitations. These two regimes show that spectral hybridization and quantum vacuum dressing are distinct manifestations of ultrastrong coupling, and that a large Rabi splitting alone does not imply a dressed quantum vacuum. Helicity therefore provides a route to controlling polariton formation and quantum correlations as distinct resources in cavity quantum materials.
Comments38 pages, 7 figures
