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arXiv 1608.07657astro-ph.HEgr-qc
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用蟹状星云脉冲星的0.4纳秒巨脉冲检验爱因斯坦的弱等效原理

Testing Einstein's weak equivalence principle with a 0.4-nanosecond giant pulse of the Crab pulsar

Yuan-Pei Yang, Bing Zhang

摘要:

爱因斯坦的弱等效原理(EEP)可以通过不同频率光子之间的到达时间延迟来检验。假设到达时间延迟是完全由银河系的引力势引起的,我们表明,一个“纳米射击”的巨型脉冲与能量之间的时间延迟校正所有已知的影响,例如$Δt<0.4~\rm{ns}$,从蟹状星云脉冲星提出了一个新的上限从EEP的偏差,即$Δγ< (0.6-1.8)\times 10^{-15}$。这一结果提供了迄今为止最严格的限制EEP,提高了至少2至3个数量级,从以前的结果的基础上快速射电暴。

英文摘要:

Einstein's weak equivalence principle (EEP) can be tested through the arrival time delay between photons with different frequencies. Assuming that the arrival time delay is solely caused by the gravitational potential of the Milky Way, we show that a "nano-shot" giant pulse with a time delay between energies corrected for all known effects, e.g. $Δt<0.4~\rm{ns}$, from the Crab pulsar poses a new upper limit on the deviation from EEP, i.e. $Δγ< (0.6-1.8)\times 10^{-15}$. This result provides the hitherto most stringent constraint on the EEP, improving by at least 2 to 3 orders of magnitude from the previous results based on fast radio bursts.

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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