论文标题
平面重力波引起的光的法拉第效应
Faraday effect of light caused by plane gravitational wave
论文作者
论文摘要
重力场会导致光的极化平面的旋转。该现象被称为引力法拉第效应。我们研究了以$+$，$ \ times $和椭圆极化模式在弱平面重力波（GW）的重力场中线性偏振光（GW）的重力效应。相应的重力法拉第旋转与波幅度和光线传递的平方距离成正比，并且与GW的平方波长成反比。如果沿其极化的方向向垂直于GW传播的方向传播，旋转也最大。当光和GW沿相同或相反的方向传播时，没有引力法拉第旋转，或者沿着垂直于GW极化方向传播的方向。椭圆极化的GW的螺旋性为重力法拉第旋转提供了更高的贡献。
Gravitational field can cause a rotation of polarisation plane of light. This phenomenon is known as the gravitational Faraday effect. We study the gravitational Faraday effect of linearly polarised light propagating in the gravitational field of a weak plane gravitational wave (GW) with $+$, $\times$, and elliptical polarisation modes. The corresponding gravitational Faraday rotation is proportional to the wave amplitude and to the squared distance traveled by light and it is inversely proportional to the GW's squared wavelength. The rotation is also maximal if light propagates in the direction perpendicular to the GW propagation, along directions of its polarisation. There is no gravitational Faraday rotation when light and the GW propagate in the same or opposite directions, or it propagates along directions perpendicular to directions of the GW polarisation. Helicity of elliptically polarised GW gives higher-order contribution to the gravitational Faraday rotation.
