arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1702.01029gr-qcquant-ph
收藏

一种新型的量子速度计干涉仪:测量速度寻找中等质量黑洞

A new type of quantum speed meter interferometer: measuring speed to search for intermediate mass black holes

Stefan L. Danilishin, Eugene Knyazev, Nikita V. Voronchev, Farid Ya. Khalili, Christian Gräf, Sebastian Steinlechner, Jan-Simon Hennig, Stefan Hild

摘要:

LIGO最近发现的引力波(GW)令人印象深刻地启动了引力天文学的新领域,它使我们能够瞥见迄今为止只能推测的令人兴奋的物体。在未来GW观测站的检测频带的低频端的进一步灵敏度改进依赖于量子非破坏(QND)方法来抑制用于读出GW信号的光场的基本量子波动。在这里,我们发明了一个新的概念,如何把一个传统的迈克耳孙干涉仪的QND测速干涉仪相干抑制量子反作用噪声,通过使用两个正交偏振的光和一个光环行器耦合他们。我们进行了详细的分析,如何实现的灵敏度的不完善和光学损耗的影响,发现这里提出的配置将显着提高低频灵敏度,并增加可观察的事件率的二元黑洞合并的范围内的$10^2-10^3 M_\odot$的一个因素高达$\sim300$。

英文摘要:

The recent discovery of gravitational waves (GW) by LIGO has impressively launched the novel field of gravitational astronomy and it allowed us to glimpse at exciting objects we could so far only speculate about. Further sensitivity improvements at the low frequency end of the detection band of future GW observatories rely on quantum non-demolition (QND) methods to suppress fundamental quantum fluctuations of the light fields used to readout the GW signal. Here we invent a novel concept of how to turn a conventional Michelson interferometer into a QND speed meter interferometer with coherently suppressed quantum back-action noise by using two orthogonal polarisations of light and an optical circulator to couple them. We carry out a detailed analysis of how imperfections and optical loss influence the achievable sensitivity and find that the configuration proposed here would significantly enhance the low frequency sensitivity and increase the observable event rate of binary black hole coalescences in the range of $10^2-10^3 M_\odot$ by a factor of up to $\sim300$.

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。

↑