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arXiv 2210.04566quant-phphysics.ins-det
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具有量子放大的台式干涉仪设计

Design of a tabletop interferometer with quantum amplification

Jiri Smetana, Artemiy Dmitriev, Chunnong Zhao, Haixing Miao, Denis Martynov

AI总结:

本文提出一种基于双耦合腔、氮化硅薄膜和辅助泵浦场的台式干涉仪设计,实现相位不敏感量子放大,并展示自稳定动力学、灵敏度量子增强及增益光学控制,为未来引力波和轴子探测器提供技术基础。

摘要:

激光干涉仪的灵敏度从根本上受到光的量子本质限制。近期的理论研究开辟了一条新途径,通过使用有源宇称-时间对称和相位不敏感量子放大来增强其量子极限灵敏度。在理想情况下,这些系统能够增强信号响应而不引入过量噪声。然而,此类有源系统必须是因果的、稳定的,并经过精细调谐,才能实际应用于精密测量。在本文中,我们展示了激光干涉仪中的相位不敏感放大可以在台式实验中实现。该装置由两个耦合腔和一个有源介质组成,其中有源介质包含一个氮化硅薄膜和一个辅助泵浦场。我们的设计依赖于现有的薄膜和低温技术,能够展示三个显著特征:(i)光学系统的自稳定动力学,(ii)在放大器存在下其灵敏度的量子增强,以及(iii)放大器增益的光学控制。这些特征对于增强未来干涉式引力波和轴子探测器的灵敏度是必需的。

英文摘要:

The sensitivity of laser interferometers is fundamentally limited by the quantum nature of light. Recent theoretical studies have opened a new avenue to enhance their quantum-limited sensitivity by using active parity-time-symmetric and phase-insensitive quantum amplification. These systems can enhance the signal response without introducing excess noise in the ideal case. However, such active systems must be causal, stable, and carefully tuned to be practical and applicable to precision measurements. In this paper, we show that phase-insensitive amplification in laser interferometers can be implemented in a tabletop experiment. The layout consists of two coupled cavities and an active medium comprised of a silicon nitride membrane and an auxiliary pump field. Our design relies on existing membrane and cryogenic technology and can demonstrate three distinct features: (i) the self-stabilized dynamics of the optical system, (ii) quantum enhancement of its sensitivity in the presence of the amplifier, and (iii) optical control of the amplifier gain. These features are needed to enhance the sensitivity of future interferometric gravitational-wave and axion detectors.

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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