论文标题
建议使用重力波干涉仪搜索轴突样粒子的风
Proposed Search for a wind of Axion-like-particles using the Gravitational Wave Interferometers
论文作者
论文摘要
如果存在阿尔卑斯山，当光穿越存在ALP场的区域时，光的折射率将被修改。我们建议在地球相对于ALP风的方向旋转时测量光的折射率及其角依赖性。 LIGO干涉仪对两个臂中光循环的光折射率的差异敏感，并且在2006年2月至2007年7月的S5运行期间记录了这种差异。它们部分归因于水平潮汐梯度与一只臂对齐时的水平潮汐梯度。另外，如图1所示，在地球轨道频率的两倍处观察到了非常强的调制。如果两个臂之间的折射率的差异取决于光传播矢量和ALP风的方向之间的角度，则可以理解这一点。我们将数据呈现为地球运动的函数，并讨论观察到的折射率N-1〜10E-20的大小。
If ALPs exist, the refractive index of light will be modified when light traverses a region where an ALP field is present. We propose to measure the refractive index of light and its angular dependence as the Earth rotates with respect to the direction of the ALP wind. The LIGO Interferometers are sensitive to differences in the refractive index of the light circulating in the two arms, and such differences were recorded during the S5 run, February 2006 to July 2007. They are due in part to the horizontal tidal gradients when they are aligned with one of the arms. In addition a very strong modulation was observed at twice the Earth's orbital frequency as can be seen in Fig.1. This can be understood if the difference in the refractive index between the two arms depends on the angle between the light propagation vector and the direction of the ALP wind. We present the data as a function of the Earth's motion, and discuss the magnitude of the observed refractive index, n-1 ~ 10e-20.
