
报告题目:Generalized Entropy and Varying-G Correspondence
报告人:王元君(ONG YEN CHIN) 教授(南京航空航天大学)
报告时间:2025 年 12 月 11 日(周四)15 : 30-16 : 30
报告地点:北洋园校区 49 教 410 室
报告摘要:
The literature is abound with entropy functions that generalize Boltzmann-Gibbs, and in the context of black hole and cosmological horizons, they give rise to modifications of the Bekenstein-Hawking area law. This gives rise to subtleties concerning thermodynamic energy, which often is no longer equivalent to the ADM mass of the black hole. This talk will discuss how generalizing entropy may give rise to new theory of gravity in which the gravitational constant G is now area-dependent and in general, varying. Some supporting evidence for this proposal will be discussed, which include: (1) restoring the Bekenstein bound, which otherwise is grossly violated by entropy modification; (2) asymptotically safe gravity now tied to logarithmic correction of the Bekenstein-Hawking entropy; (3) GUP-like behavior for the Schwarzschild black hole without explicitly employing GUP --- which may also suggest a strong connection between gravity, thermodynamics, and quantum mechanics; (4) possible theoretical basis for black hole-cosmology coupling.
报告人简介:
王元君,马来西亚籍,南京航空航天大学“长空英才”教授、空间科学与量子科技交叉研究中心副主任,研究领域主要集中在广义相对论与引力,目前研究兴趣主要为引力与热力学的关系、推广不确定性原理、理论宇宙学等。台湾大学天体物理学博士、新加坡国立大学数学硕士与荣誉学士。博士毕业后赴位于瑞典的北欧理论物理研究所任Nordita Fellow独立博士后;2016年获德国汉诺威大学黎曼几何与物理中心Riemann Fellowship。2019年获江苏省特聘教授与国家自然科学基金优秀青年科学基金(现国自然青B)资助。博士毕业论文曾获Springer杰出博士论文奖。自2021年起每年获选美国斯坦福大学和爱思唯尔遴选出的世界排名领域内的年度前2%顶尖科学家。国际上曾接受《美国科学人》、《Quanta Magazine》等科普杂志采访。发表文章90余篇,其中根据高能物理数据库iNSPIRE,关于推广不确定性原理与致密星物理的独著工作JCAP 09 (2018) 015目前引用百余次;以唯一通讯作者身份发表的综述Physics Reports 603 (2015) 1目前累计引用300余次。