论文标题
多模腔中极化状态的耦合和解耦
Coupling and Decoupling of Polaritonic States in Multimode Cavities
论文作者
论文摘要
我们在强耦合方面演示了一种新型的过渡，从而改变了多模腔中的耦合机制。我们表明，这种过渡会大大修改描述极化子的哈密顿量，从而使不同的空腔模式通过材料纠缠或完全脱钩。这种去耦过渡是由于材料中的耗散与有限群速度之间的竞争，该速度控制了整个腔内和分子之间信息的传播。结果表明，在空腔量子电动力学中通常不考虑光的速度在腔层的形成及其动力学中起着至关重要的作用。
We demonstrate a new type of transition within the strong coupling regime, which alters the coupling mechanism in multimode cavities. We show that this transition drastically modifies the Hamiltonian describing the polaritons, such that different cavity modes are either entangled via the material or completely decoupled. This decoupling transition occurs due to the competition between the dissipation in the material and the finite group velocity, which governs the propagation of information across the cavity and among the molecules. The results indicate that the velocity of light, which is often not taken into account in cavity quantum electrodynamics, plays a crucial role in the formation of cavity polaritons and their dynamics.
