文献类型：期刊文献

英文题名：Nonlinear Dynamics of X-Ray Superradiant Burst via Cooperative Nuclear Excitations

作者：Shan, Juntian[1,2,3];Chang, Yue[4];Zhang, Lida[5];Wang, Fan[6];Yuan, Jianmin[7];Kong, Xiangjin[1,2,3];Ma, Yu-Gang[1,2,3,8]

机构：[1]Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China;[2]NSFC, Res Ctr Theoret Nucl Phys, Shanghai 200438, Peoples R China;[3]Fudan Univ, Shanghai 200438, Peoples R China;[4]Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China;[5]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[6]Hong Kong Univ Sci & Technol, Dept Ind Engn & Decis Analyt, Hong Kong, Peoples R China;[7]Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China;[8]East China Normal Univ, Sch Phys, Shanghai 200062, Peoples R China

年份：2026

卷号：136

期号：11

外文期刊名：PHYSICAL REVIEW LETTERS

收录：;EI(收录号：20261320334681);WOS:【SCI-EXPANDED(收录号:WOS:001729216100005)】；

基金：Acknowledgments-The ITensor Library [71] are used during the simulations. This work is supported by the National Key Research and Development Program of China under Contract No. 2024YFA1610900 and the National Natural Science Foundation of China (NSFC) under Contracts No. 12447106, No. 12547102, and

语种：英文

外文关键词：Dynamics - Excited states - Nonlinear optics - Quantum optics - Superradiance - X ray optics

摘要：Superradiant burst often arises from photon-mediated interactions within an excited ensemble of emitters, where collective emission leads to a sharp increase in photon intensity. Here, we focus on a nuclear ensemble with cooperative excitations and propose, for the first time, the generation of superradiant burst of x-ray photons. We establish the required excitation conditions to observe x-ray superradiant bursts, offering guidance for the experiments utilizing state-of-the-art x-ray sources. Building on this, we investigate the dynamics of the x-ray superradiant burst and reveal novel nonlinear relationships between the time required to reach the peak intensity and the excitation number, as well as between the peak intensity and the excitation number. Additionally, we introduce a dimensionless parameter that serves as an indicator of the system, reflecting how strongly the burst can occur in a given configuration. Our work provides fresh insights into the understanding of collective emission in many-body x-ray-nuclei systems within the nonlinear regime, opening new avenues for x-ray quantum optics.