长寿命铑穆斯堡尔态俘获核激子的相变
Phase Transition of Trapped Nuclear Exciton of Long-lived Rhodium Mossbauer States
摘要：
本文报道了用时间分辨和能量分辨光谱技术对长寿命铑穆斯堡尔辐射的实验观测。这些异常的观测结果表明，光子带隙的开放类似于超导能隙在跃迁点处的显著对称性破缺。这些观测结果对探测引力波和研制双光子伽玛激光器具有潜在的重要意义。首先，由特征发射光谱演化所显示的相变揭示了室温下不同的聚集态激子有序性。六个不同的阶段被确定的光谱轮廓发射的色心。其次，发现多极核跃迁的级联分支是自发级联下转换产生纠缠γ。从多晶样品的纠缠γ的宏观角分布表现出一个全球性的光子-核-光子的束缚态跨越晶界。第三，依赖于激子相位的伽马能量分布揭示了通常在几百eV的量级上的光子带隙。
英文摘要：
We report experimental observations of the long-lived rhodium Mossbauer emissions by the time- and energy-resolved spectroscopy. The extraordinary observations manifest the open-up of photonic band gap in analogy to the superconducting gap of remarkable symmetry breakings at transition point. These observations are of potential importance for detecting gravitational waves and development of the two-photon gamma laser. Firstly, phase transitions shown by spectral evolution of characteristic emissions reveal the different aggregate exciton orderings at room temperature. Six different phases are identified by spectra profiles emitted from the color centers. Secondly, the cascade branching of the multipolar nuclear transition is discovered being the spontaneous cascade down-conversion to generate entangled gammas. The macroscopic angular distribution of entangled gammas from the polycrystalline sample manifests a global photon-nucleus-photon bound state across the grain boundaries. Thirdly, the gamma-energy distributions depending on exciton phases reveal the photonic band gap typically on the order of several hundred eV.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
