The signal photon flux, background photons and shot noise in electromagnetic response of high-frequency relic gravitational waves
The signal photon flux, background photons and shot noise in electromagnetic response of high-frequency relic gravitational waves
复制标题
高频遗迹引力波电磁响应中的信号光子通量、背景光子和散粒噪声
DOI：
10.1007/s10714-011-1176-8
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发表时间：
2011-05
影响因子：
2.8
通讯作者：
Zhong, Yuanhong
中科院分区：
文献类型：
--
作者：
Li, Jin;Lin, Kai;Li, Fangyu;Zhong, Yuanhong
基于高频遗迹引力波（HFRGW）的电磁响应，研究了由高斯光束（GB）、静磁场和分形膜组成的共振电磁系统中信号（即横向微扰光子通量（PPF））和背景光子通量（BPF）的精确计算.根据引力波频率与无量纲振幅的关系，我们研究了前大爆炸模型和典型暴胀模型中νg= 2.9 GHz，h~ 10− 30的HFRGW.结果表明，横向BPF的峰值（~ 1020 s-1）约为|X| = 0.08 m，其中|X|是到GB纵向对称表面的横向距离，而最大横向PPF总是出现在x = 0处（GB与HFRGW谐振元件之间的最佳相位差δ=（n+0. 9）π，n= 0，1，2 . . .).然而，由于HFRGW相位的随机性质，可观测的PPF应该是~ 1.19 × 102 s − 1。由于BPF的衰减速度比PPF快得多，因此有希望在一些最佳区域中计算出信号。此外，我们还比较了BPF和PPF在自然模式下的衰减速度，找到了PPF超过BPF时的x阈值。这表明，我们的检测灵敏度的限制来自PPF的强度，而不是被BPF淹没。另一方面，在分形膜的情况下，BPF和PPF之间的比较提供了最佳检测区域。此外，通过散粒噪声的计算和保守估计，我们发现在4个月的信号积累时间内，我们的灵敏度ish= 10− 26。
On the basis of the electromagnetic response of high frequency relic gravitational waves (HFRGWs), we research on more accurate calculation of signal (i.e. transverse perturbative photon flux (PPF)) and background photons flux (BPF) in the sycro-resonance electromagnetic system, which consists of Gaussian beam (GB), a static magnetic field and fractal membranes. According to the relationship between frequency of gravitational waves and its dimensionless amplitude, we focus on the HFRGWs withνg= 2.9 GHz,h~ 10−30in the pre-big bang and quintessential inflationary models. The results show the peak value of the transverse BPF (~ 1020s−1) is around |x| = 0.08 m, where |x| is the transverse distance to the longitudinal symmetrical surface of the GB, while the maximum transverse PPF always appears at x = 0 (with the optimal phase difference between the GB and the resonant component of the HFRGWsδ= (n+ 0.9)π,n= 0, 1, 2 . . .). However, the observable PPF should be ~ 1.19 × 102s−1because of the stochastic nature of the HFRGWs’ phase. Since the decay speed of BPF is much quicker than PPF, it is hopeful to figure out the signal in some optimal regions. Moreover, we compare the decay speed of BPF and PPF in nature mode, and find the threshold value of x where PPF exceeds to BPF. It demonstrates that the limitation of our detection sensitivity comes from the strength of PPF rather than swamping by BPF. On the other hand, with the fractal membrane, the comparison between BPF and PPF provides the optimal detection aream. In addition, through the calculation of shot noise and conservative estimation, we find that our sensitivity ish= 10−26in 4 months signal accumulate time.
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影响因子：
--
作者：
T. Tokuoka
通讯作者：
T. Tokuoka
影响因子：
3.5
作者：
Meng-xi Tang;Fang-yu Li
通讯作者：
Meng-xi Tang;Fang-yu Li
影响因子：
2.8
作者：
N. V. Mitskievich;A. Nesterov
通讯作者：
N. V. Mitskievich;A. Nesterov
影响因子：
64.8
作者：
R. Kwok
通讯作者：
R. Kwok
DOI：
10.1103/physrevd.46.1239
发表时间：
1992-08
期刊：
Physical review. D, Particles and fields
影响因子：
--
作者：
Gerlach
通讯作者：
Gerlach