论文标题

使用单个Mach-Zehnder配置,用于重力波检测的无位移中子干涉仪

Displacement-noise-free neutron interferometer for gravitational wave detection using a single Mach-Zehnder configuration

论文作者

Iwaguchi, Shoki, Nishizawa, Atsushi, Chen, Yanbei, Kawasaki, Yuki, Kitaguchi, Masaaki, Morimoto, Taigen, Ishikawa, Tomohiro, Wu, Bin, Watanabe, Izumi, Shimizu, Ryuma, Shimizu, Hirohiko, Michimura, Yuta, Kawamura, Seiji

论文摘要

由于位移噪声,在较低频率下对重力波(GWS)的敏感性仍然具有挑战性。解决方案之一是中子位移无空中干涉仪(DFI)。我们通过利用根据配置调整中子速度的能力来简化检测器配置。新的配置由两个横梁拼式和两个镜子组成,它们构成一个单一的Mach-Zehnder干涉仪(MZI)。在先前的研究中,它比具有两个MZIS的配置要简单。镜子和横梁的所有位移噪声都可以在频域中取消。可以使用相图图来直观地解释这种取消。

The improvement of sensitivity to gravitational waves (GWs) at lower frequencies is still challenging on account of displacement noise. One of the solutions is the neutron displacement-noise-free interferometer (DFI). We focus on a simplification of the detector configuration by taking advantage of the ability to adjust the neutron speed depending on the configuration. The new configuration consists of two beamsplitters and two mirrors, which constitute a single Mach-Zehnder interferometer (MZI). It is simpler than the configuration with two MZIs in previous research. All displacement noise of mirrors and beamsplitters can be canceled in the frequency domain. This cancellation can be explained intuitively using a phasor diagram.

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