Manybody non-linear and coherent phenomena in optical cavities with embeddedvan der Waals heterostructures: The bosonic versus the fermionic regime

嵌入范德华异质结构的光学腔中的多体非线性和相干现象：玻色子与费米子体系

• 批准号: 443416027
• 负责人: Dr. Christopher Gies
• 金额: --
• 依托单位: Institut für Festkörperphysik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/443416027?language=en
• 关键词: Manybody; non; linear; coherent; phenomena

Our research is centered around the emergent phenomena of excitons in twisted van der Waals heterostructures that are loaded in optical microcavities. As excitons couple to the resonant modes of the photonic structure their emission behavior changes crucially. In the framework of cavity quantum electrodynamics (cQED), we can distinguish two fundamental regimes: In the weak-coupling regime, the amplification of spontaneous emission yields an effective funneling of photons into resonant cavity modes, which is key for the reduction of threshold powers in microlasers. In our project, we will utilize the unique capability of twisted TMD bilayers and novel trilayers to implement and engineer periodic arrays collectively coupled of quantum emitters. Integrated in optical microcavities, such emitter arrays will form the foundation of a new generation of van der Waals microlasers. We will explore their collective and correlated behavior in optical cavities via a quantum-optical approaches. The strong-coupling regime of cQED is characterized by a coherent energy transfer between light and matter and results in the formation of new polaritonic eigenstates. We will probe quantum correlations of dipolar polariton gases, macroscopic quantum phases in the realm of the extended Bose-Hubbard model, and the emergence of coherence in light-matter coupled TMD systems. Our consortium combines experimental activities with quantum-optical and material-realistic theoretical modeling, building on our extensive long-standing expertise and very fruitful collaborative experience.

我们的研究是围绕着加载在光学微腔中的扭曲货车德瓦耳斯异质结构中激子的涌现现象展开的。当激子耦合到光子结构的共振模式时，它们的发射行为发生关键性的变化。在腔量子电动力学（cQED）的框架下，我们可以区分两种基本机制：在弱耦合机制下，自发辐射的放大产生了光子进入谐振腔模的有效函数，这是降低微激光器阈值功率的关键。在我们的计画中，我们将利用扭曲TMD双层膜和新颖三层膜的独特能力，来实现和设计量子发射器集体耦合的周期性阵列。集成在光学微腔中，这种发射器阵列将形成新一代货车德瓦耳斯微激光器的基础。我们将通过量子光学方法探讨它们在光学腔中的集体和关联行为。cQED的强耦合机制的特征在于光和物质之间的相干能量转移，并导致新的极化激元本征态的形成。我们将探讨偶极极化激元气体的量子相关性，在扩展的玻色-哈伯德模型的领域中的宏观量子相，以及光-物质耦合TMD系统中相干性的出现。我们的联盟将实验活动与量子光学和材料现实的理论建模相结合，建立在我们广泛的长期专业知识和非常富有成效的合作经验的基础上。