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arXiv 2408.03384physics.opticsgr-qc
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引力场中光学腔内脉冲光的传播

Propagation of pulsed light in an optical cavity in a gravitational field

Daniel D. Hickstein, David R. Carlson, Zachary L. Newman, Cecile Carlson, Carver Mead

AI总结:

本文利用6 GHz电光频率梳与低噪声连续波激光器测量高精细度光学腔共振频率,在$10^{-12}$光频精度内证明脉冲光与连续波光所受引力影响一致,未发现矢量引力理论预言的差异。

摘要:

从牛顿理论开始,所有现代引力理论都预言引力会影响光的传播速度。爱因斯坦的广义相对论著名地预言该效应是牛顿值的两倍,这一预言在1919年日食期间得到了验证。近期的矢量引力理论可以被解释为暗示:在光学腔的两面镜子之间传播的脉冲光与连续波(CW)光会受到不同的引力影响。有趣的是,我们尚未发现此前有任何实验用于确定引力对脉冲光与连续波光传播的相对影响。为了观测是否存在微小差异,我们使用6 GHz电光频率梳和低噪声连续波激光器,对高精细度光学腔的共振频率进行了精细测量。在校正镜面色散效应之后,我们确定脉冲光和连续波光的腔共振频率在实验误差范围内相同,该误差约为光频率的$10^{-12}$量级,并且为预期引力频移的七百分之一。

英文摘要:

All modern theories of gravitation, starting with Newton's, predict that gravity will affect the speed of light propagation. Einstein's theory of General Relativity famously predicted that the effect is twice the Newtonian value, a prediction that was verified during the 1919 solar eclipse. Recent theories of vector gravity can be interpreted to imply that gravity will have a different effect on pulsed light versus continuous-wave (CW) light propagating between the two mirrors of an optical cavity. Interestingly, we are not aware of any previous experiments to determine the relative effect of gravity on the propagation of pulsed versus CW light. In order to observe if there are small differences, we use a 6 GHz electro-optic frequency comb and low-noise CW laser to make careful measurements of the resonance frequencies of a high-finesse optical cavity. Once correcting for the effects of mirror dispersion, we determine that the cavity resonance frequencies for pulsed and CW light are the same to within our experimental error, which is on the order of $10^{-12}$ of the optical frequency, and one part in 700 of the expected gravitational shift.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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