源于宇宙弦的引力波暴及其电磁共振效应  

The electromagnetic resonance effect of gravitational waveburst emitted from cosmic string

作　　者：王丽丽 史金磊 严建军 张祎 杨轲 赵琳 杨静静 WANG Li-li;SHI Jin-lei;YAN Jian-jun;ZHANG Yi;YANG Ke;ZHAO Lin;YANG Jing-jing(College of Physics and Electronic Engineering,Zhengzhou Normal University,Zhengzhou 450044,Henan,China)

机构地区：[1]郑州师范学院物理与电子工程学院,河南郑州450044

出　　处：《云南大学学报（自然科学版）》2024年第1期53-58,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：河南省自然科学基金(232300420364);河南省高等学校重点科研计划(23B140017);郑州地方高校大学生创新训练计划(ZDC2021003)。

摘　　要：引力波为宇宙学模型的检验提供了新方法,宇宙弦环震荡会激发较强的尖端引力辐射,甚高频波段的引力波可以通过电磁共振效应来探测.文章基于修正的宇宙弦模型,以p和?为自由参数,主要研究了宇宙弦环震荡产生的甚高频引力波特性h,以及在电磁共振方案中产生的物理效应.通过数值计算保守估计引力波暴的量纲为1的振幅强度可以达到10^(-28)~10^(-25).在电磁共振效应下产生的信号光子流强度N_(x)^(1)达到10^(4)~10^(8)s^(-1),信噪比强度S为10^(-20)~10^(-14).与其它类型的此频段引力波相比较,此类引力波更可能在未来被探测器探测到.The gravitational waves(GWs)provide a new method for the verification of cosmological models.The strong gravitational radiation could be excited from cusps of oscillating string loops.The extra high frequency gravitational waves(HFGWs)could be detected by electromagnetic resonance effect.Based on the modified cosmological model and taking p and as free parameters,we shall investigate the feature of extra HFGWs h emitted from cusps of oscillating string loops and physical effect from electromagnetic resonance scheme in this paper.We estimate conservatively that the strength of dimensionless amplitude can reach up to 10^(−28)−10^(−25).In electromagnetic resonance system,the signal photon flux could reach up to 10^(4)−10^(8) s^(−1) and the ratio of signal to noise is 10^(−20)−10^(−14).Compared with other type of GWs in this frequency band,the GW discussed in this paper is more likely to be detected by the detector in the future.

关 键 词：宇宙弦 甚高频引力波探测器 信号光子流 信噪比 

分 类 号：O412.1[理学—理论物理] O442[理学—物理]