室温极化激元超固体
Room-temperature polariton supersolids
- The University of Hong Kong（香港大学）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
该研究在室温下通过集成钙钛矿半导体与光子晶体波导实现极化激元凝聚体，观测到同时具有晶体序和全局量子相干性的超固体相，为量子流体动力学研究提供了室温平台。
AI中文摘要：
在室温下探索物质的奇异量子相是现代物理学的前沿挑战。超固体相独特地融合了晶体序与无摩擦的超流体流动，是最引人入胜的宏观量子现象之一。然而，此前所有超固体的演示，无论是在超冷原子气体还是基于III-V族半导体的极化激元系统中，都严格局限于低温环境。在此，我们报告了在光子晶体极化激元凝聚体中观测到的室温超固体。通过将室温稳定的钙钛矿半导体与色散工程化的光子晶体波导集成，我们创建了具有多模色散景观和显著参数非线性效应的极化激元凝聚体。在超过临界凝聚密度时，相互作用的凝聚体自发打破连续平移对称性，形成一种非刚性超固体相，该相同时展现出涌现的晶体序和全局量子相干性。这项工作为研究量子流体动力学和发展相干量子模拟器件建立了室温平台。
英文摘要：
Exploring exotic quantum phases of matter at room temperature represents a frontier challenge in modern physics. The supersolid phase, uniquely merging crystalline order with frictionless superfluid flow, stands among the most intriguing macroscopic quantum phenomena. However, all previous demonstrations of supersolidity, whether in ultracold atomic gases or III-V semiconductor-based polariton systems, have been strictly confined to cryogenic temperatures. Here, we report the observation of room-temperature supersolids in photonic-crystal polariton condensates. By integrating a room-temperature-stable perovskite semiconductor with a dispersion-engineered photonic-crystal waveguide, we create a polariton condensate with multi-mode dispersion landscapes and pronounced parametric nonlinearities. Above a critical condensation density, the interacting condensates spontaneously break continuous translational symmetry, creating a non-rigid supersolid phase that simultaneously exhibits emergent crystalline order and global quantum coherence. This work establishes a room-temperature platform for investigating quantum hydrodynamics and developing coherent quantum simulation devices.
