主讲人单位 (Speaker's Institute): 北京大学

邀请人 (Invited by): 张建东

时间 (Time): 星期一，2022/10/31-15：00-16：30

地点 (Location): 珠海校区天琴中心1416会议室/腾讯会议

摘要 (Abstract): 

In this talk, I will introduce a classical physical process to use a Schwarzschild black hole as a rechargeable battery. In its one cycle the black hole does not loss energy but can at most transform 25% of input mass into available electric energy in a controllable and slow way. This theory is about the dynamics of black hole in cavity to study the discharging process. Under “quasi-static approximation”, various properties of this battery, including the internal resistance, efficiency of discharging, maximum output power, cycle life and totally available energy have been studied. Differing from that usual Penrose process or superradiance can extract appreciable energy only from extremely rotational or charged black hole, the black hole here is non-rotational and only needs very tiny amounts of charge but in its life it can supply available electric energy much larger than its initial mass.

主讲人简介 (Speaker's CV): 

麦展风，2015年本科毕业于华南师范大学，2022年于天津大学获博士学位，师从吕宏老师。目前麦展风系北京大学科维理天文与天体物理研究所（PKU-KIAA）的在站全职博士后，合作导师是邵立晶老师。主要研究方向及兴趣是黑洞物理及引力波，重点关注黑洞的超辐射性质以及准正规模（Quasi-Normal Modes）等相关性质。