摘要
意大利国际著名物理学家VenzodeSabbata教授关于广义相对论在天体物理学领域里的应用的研究是开创性和举世瞩目的 ,成就辉煌 ,笔者将着重介绍他在这方面的一些工作 ,特别是对他的一篇题为“是否有必要用暗物质来解释银河涡旋曲线 ?”一文予以重点介绍。为了能与天文观测值取得一致 ,Milgrom采用了一个新的基本加速度a0 对Newton动力学进行修正 (MOND) ,而Sabbata却另辟蹊径 ,在广义相对论中引入与粒子的内禀自旋有内在联系的挠率 ,精辟地指出 ,不需用暗物质解释 ,由挠率所引起的量子效应就可导出基本加速度amax和amin,它们是Einstein
Professor Venzo de Sabbata is a famous Italian physicist in the world. He is engaged with a series of creating research works about the general relativity theory applying to astrophysics, and achievies glorious successes. The author pays attention to his works in this field, especially his paper titled 'Is it dark matter necessary to explain galaxy rotation curves?'In order to coincide with the astrophysical observations, Milgrom adopted a new foundamental acceleration a 0 to modify the Newtonian Dynamics (MOND).Meanwhile Sabbata explored another approach wisely by introducing the innate related torsion with intrinsic spin of the particle into the general relativity theory, and showed penetratively that without use of dark metter for explanation,the foundamental accelerations a max and a min will be derived from the quantum effect yielded by the torsion. They are the nice results which can be derived from an accurate solution of the related equations in the Einstein Cartan general relativity theory.
出处
《重庆大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2003年第6期121-124,共4页
Journal of Chongqing University
关键词
广义相对论
挠率
自旋
银河系
暗物质
天体物理学
general relativity theory
torsion
spin
galaxy
dark matter
astrophysics