报告题目:Charged particle motion and electromagnetic field in gamma spacetime
报告人:Carlos A. Benavides-Gallego
报告时间:上午10:00-11:00
报告地点:二楼教师活动中心
Carlos A. Benavides-Gallego 学术报告
报告题目 Title: Charged particle motion and electromagnetic field in gamma spacetime
报告时间 Time: 2019年10月22日上午10:00-11:00 (周二)
报告地点 (Room): 二楼教师活动中心
报告摘要 (Abstract):
We consider the electromagnetic field occurring in the background of a static, axially symmetric vacuum solution of Einstein's field equations immersed in an external magnetic field.
The solution, known as the Zipoy-Voorhees, is related to the Schwarzschild spacetime through a real positive parameter gamma that describes its departure from spherical symmetry.
We study the motion of charged and uncharged particles in this spacetime and particle collision in the vicinity of the singular surface and compare with the corresponding result for
Schwarzschild. We show that there
is a sharp contrast with the black hole case, in particular, in the prolate case (gamma<1) particle collision can occur with arbitrarily high center of mass energy. This mechanism
could in principle allow to distinguish such a source from a black hole.
报告人简介 (Bio): Carlos A. Benavides-Gallego is a physicist from the National University of Colombia. In 2013, he obtained an MSc. in astronomy from the same university.
During the period 2013-2017, he was a lecturer at Konrad Lorenz University, Catholic University of Colombia, Los Libertadores University, and Escuela de Ingenieros Militares.
Mrs. Benavides-Gallego is currently a Ph.D. student at Fudan University where he works with professor Cosimo Bambi. His research as a Ph.D. student is related to general relativity.
His fields of interest are black holes, alternative theories of gravity, and gravitational lensing.

