Boson star superradiance  

作　　者：He-Yu Gao Paul M.Saffin Yi-Jie Wang Qi-Xin Xie Shuang-Yong Zhou 

机构地区：[1]School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China [2]School of Physics and Astronomy,University of Nottingham,University Park,Nottingham NG72RD,UK [3]Interdisciplinary Center for Theoretical Study,University of Science and Technology of China,Hefei 230026,China [4]Peng Huanwu Center for Fundamental Theory,Hefei 230026,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第6期69-78,共10页中国科学：物理学、力学、天文学（英文版）

基　　金：support by the Fundamental Research Funds for the Central Universities(Grant No.WK2030000036);the National Natural Science Foundation of China(Grant Nos.12075233and 12247103);the National Key R&D Program of China(Grant No.2022YFC220010);funded by STFC Consolidated(Grant No.ST/T000732/1);support from the National Natural Science Foundation of China(Grant No.123B1030)。

摘　　要：Recently,it has been realized that in some systems internal space rotation can induce energy amplification for scattered waves,similar to rotation in real space.In particularly,it has been shown that energy extraction is possible for a Q-ball,a stationary non-topological soliton that is coherently rotating in its field space.In this paper,we generalize the analysis to the case of boson stars,and show that the same energy extraction mechanism still works for boson stars.

关 键 词：SUPERRADIANCE boson star field space rotation 

分 类 号：P142.84[天文地球—天体物理]