标题： 原理验证实验：用于引力波探测的无位移噪声中子干涉仪 显示英文标题

标题： Proof-of-Principle Experiment on a Displacement-Noise-Free Neutron Interferometer for Gravitational Wave Detection

摘要： 无位移噪声的干涉仪（DFI）设计用于消除所有由位移引起的噪声，同时保持对引力波（GW）信号的灵敏度。 基于地面的DFI受到物理臂长限制的影响，在1千赫以下频率的灵敏度较差。 为解决这一问题，之前的研究引入了一种基于中子的DFI，用中子代替激光，并实现了几赫兹量级的卓越灵敏度。 在本研究中，我们使用日本质子加速器研究复合体（J-PARC）的脉冲中子源进行了原理验证实验。 尽管实际限制导致实验设计偏离理想状态，但我们优化了装置并开发了一种新的分析方法，成功消除了位移噪声，同时保留了模拟的GW信号。 这项工作首次成功展示了基于中子的DFI和用于GW探测的中子干涉仪。 显示英文摘要

摘要： The displacement-noise-free interferometer (DFI) is designed to eliminate all displacement-induced noise while retaining sensitivity to gravitational wave (GW) signals. Ground-based DFIs suffer from physical arm-length limitations, resulting in poor sensitivity at frequencies below 1 kHz. To address this, previous research introduced a neutron-based DFI, which replaces laser light with neutrons and achieves exceptional sensitivity down to a few hertz. In this study, we conducted a proof-of-principle experiment using a pulsed neutron source at the Japan Proton Accelerator Research Complex (J- PARC). Despite practical constraints that led to deviations from the ideal experimental design, we optimized the setup and developed a novel analysis method that successfully cancels displacement noise while preserving simulated GW signals. This work presents the first successful demonstration of a neutron DFI and a neutron interferometer for GW detection.