讲座题目：On the quasinormal frequencies of black hole with perturbations 主讲人：岳瑞宏 教授 主持人：陈勇 开始时间𓀎🕦：2020-12-16 14:00:00 结束时间：2020-12-16 15:00:00 讲座地址🦏：腾讯会议 ID：290 173 448 主办单位：数学科学学院
报告人简介： 岳瑞宏教授，博士生导师。现为扬州大学特聘教授、物理学一级博士学位授权点负责人。曾任西北大学物理系主任🧖🏽🍻、宁波大学物理学科系主任、学科带头人、“甬江学者”特聘教授。中科院卡弗里理论物理所(KITPC) 国内顾问委员🥿、理论物理所学术委员，中国高能物理学会常务理事🚴🏻。2006-2010年教育部全国教学指导委员会委员，先后获陕西省科技进步奖一、二、三等奖。主要从事量子场论、共形场👨🏿💻、可积模型、黑洞热力学等方向的研究。曾参加国家重大项目八五攀登计划、国家基金委重大研究计划；主持国家基金委研究项目7项、其它省部级项目十多项🧑🏿⚖️。在国内外学术刊物上(NPB, PRA☝️、B🤽🏼♂️、D🧑🏭、E🛵，JHEP✊🏼👮🏿♂️，PLB，JCAP🔂，EPJC.)发表了论文160多篇。
报告内容🛥： In this talk , we show that for the rotating black holes, a moderate source term in the master equation in the Laplace s-domain does not modify the quasinormal modes. Furthermore, we generalize our discussions to the case where the external source serves as a driving force, and find that an external source may further drive the system to experience new perturbation modes. The analytical analyses are verified numerically by employing the Prony method. Besides, we also investigate the properties of the quasinormal modes with the piecewise function approximation of black hole matric. We argue that a discontinuity in the effective potential, no matter how insignificant, might appreciably modify the asymptotical behavior of the quasinormal modes. This is demonstrated both analytically and numerically. |
