论文标题

通过完成重力波检测器中量子锁定中多个干涉仪输出的平方来优化量子噪声

Optimization of quantum noise by completing the square of multiple interferometer outputs in quantum locking for gravitational wave detectors

论文作者

Yamada, Rika, Enomoto, Yutaro, Nishizawa, Atsushi, Nagano, Koji, Kuroyanagi, Sachiko, Kokeyama, Keiko, Komori, Kentaro, Michimura, Yuta, Naito, Takeo, Watanabe, Izumi, Morimoto, Taigen, Ando, Masaki, Furusawa, Akira, Kawamura, Seiji

论文摘要

使用额外的短低损失亚腔的量子锁定技术可有效减少空间重力波天线decigo中的量子噪声。但是,主要干涉仪的量子噪声取决于子腔中的控制系统。在这里,我们通过完成量子锁定系统中的正方形来演示一种新方法,可以独立于反馈增益来优化量子噪声。我们在模拟中成功证明了该方法有效地优化了与最佳量子噪声限制灵敏度的同源角度。

The quantum locking technique, which uses additional short low-loss sub-cavities, is effective in reducing quantum noise in space gravitational wave antenna DECIGO. However, the quantum noise of the main interferometer depends on the control systems in the sub-cavities. Here we demonstrate a new method to optimize the quantum noise independently of the feedback gain by completing the square in the quantum locking system. We successfully demonstrate in simulations that this method is effective in optimizing the homodyne angle to the best quantum-noise-limited sensitivity.

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