报告题目:Hawking radiation of charged Einstein-aether black holes at both Killing and universal horizon
报告人：丁持坤博士
报告时间：下午1:30-2:30
报告地点：理学楼报告厅A101
报告题目：Hawking radiation of charged Einstein-aether black holes at both Killing and universal horizon
报告人：湖南人文科技学院 丁持坤博士
报告地点：理学楼报告厅A101
报告时间：11.18 周五 下午1:30-2:30
报告摘要：We study analytically quantum tunneling of relativistic and non-relativistic particles at both Killing and universal horizons of Einstein-Maxwell-aether black holes, after high-order curvature corrections are taken into account, for which the dispersion relation of the particles becomes nonlinear. Our results at the Killing horizons confirm the previous ones, i.e., at high frequencies the corresponding radiation remains thermal and the nonlinearity of the dispersion does not alter the Hawking radiation significantly. In contrary, non-relativistic particles are created at universal horizons and are radiated out to infinity. The radiation also has a thermal spectrum, and the corresponding temperature takes the form, TUH z = 2κUH(z −1)/(2πz), where z denotes the power of the leading term in the nonlinear dispersion relation, κUH is the surface gravity of the universal horizon, defined by peering behavior of ray trajectories at the universal horizon. We also study the Smarr formula by assuming that: (a) the entropy is proportional to the area of the universal horizon, and (b) the first law of black hole thermodynamics holds, whereby we derive the Smarr mass, which in general is different from the total mass obtained at infinity. This indicates that one or both of these assumptions must be modified.
报告人简介：丁持坤，理学博士，2012年全国百篇优秀博士论文提名论文获得者，湖南省青年骨干教师，湖南人文科技学院副教授。1994.9—1997.6 衡阳师范学院物理系学习；1997.7—2005.8，湖南省湘潭县中学物理教师；2005.9—2010.7，湖南师范大学物理系理论物理专业攻读博士学位；2010年7月进入湖南人文科技学院工作；2015年起兼任贵州大学研究生导师，2016年起兼任湖南师范大学研究生导师。现任物理学专业带头人，理论物理校级重点学科带头人，校学术委员会委员，湖南省物理学会理事。主持国家自然科学基金1项，国家留学基金1项，湖南省自然科学基金2项，发表SCI科研论文18篇。
欢迎感兴趣的老师和同学参加！
报告人：湖南人文科技学院 丁持坤博士
报告地点：理学楼报告厅A101
报告时间：11.18 周五 下午1:30-2:30
报告摘要：We study analytically quantum tunneling of relativistic and non-relativistic particles at both Killing and universal horizons of Einstein-Maxwell-aether black holes, after high-order curvature corrections are taken into account, for which the dispersion relation of the particles becomes nonlinear. Our results at the Killing horizons confirm the previous ones, i.e., at high frequencies the corresponding radiation remains thermal and the nonlinearity of the dispersion does not alter the Hawking radiation significantly. In contrary, non-relativistic particles are created at universal horizons and are radiated out to infinity. The radiation also has a thermal spectrum, and the corresponding temperature takes the form, TUH z = 2κUH(z −1)/(2πz), where z denotes the power of the leading term in the nonlinear dispersion relation, κUH is the surface gravity of the universal horizon, defined by peering behavior of ray trajectories at the universal horizon. We also study the Smarr formula by assuming that: (a) the entropy is proportional to the area of the universal horizon, and (b) the first law of black hole thermodynamics holds, whereby we derive the Smarr mass, which in general is different from the total mass obtained at infinity. This indicates that one or both of these assumptions must be modified.
报告人简介：丁持坤，理学博士，2012年全国百篇优秀博士论文提名论文获得者，湖南省青年骨干教师，湖南人文科技学院副教授。1994.9—1997.6 衡阳师范学院物理系学习；1997.7—2005.8，湖南省湘潭县中学物理教师；2005.9—2010.7，湖南师范大学物理系理论物理专业攻读博士学位；2010年7月进入湖南人文科技学院工作；2015年起兼任贵州大学研究生导师，2016年起兼任湖南师范大学研究生导师。现任物理学专业带头人，理论物理校级重点学科带头人，校学术委员会委员，湖南省物理学会理事。主持国家自然科学基金1项，国家留学基金1项，湖南省自然科学基金2项，发表SCI科研论文18篇。
欢迎感兴趣的老师和同学参加！