Frequency-dependent squeezing for gravitational-wave detection through quantum teleportation

• URL: http://arxiv.org/abs/2401.04295v2
• Date: Mon, 25 Mar 2024 15:10:53 GMT
• Title: Frequency-dependent squeezing for gravitational-wave detection through quantum teleportation
• Authors: Yohei Nishino, Stefan Danilishin, Yutaro Enomoto, Teng Zhang,
• Abstract summary: Ground-based interferometric gravitational wave detectors are highly precise sensors for weak forces. Current and future instruments address this limitation by injecting frequency-dependent squeezed vacuum into the detection port. This study introduces a novel scheme employing the principles of quantum teleportation and entangled states of light.
• Score: 4.647804073850528
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Ground-based interferometric gravitational wave detectors are highly precise sensors for weak forces, limited in sensitivity across their detection band by quantum fluctuations of light. Current and future instruments address this limitation by injecting frequency-dependent squeezed vacuum into the detection port, utilizing narrow-band, low-loss optical cavities for optimal rotation of the squeezing ellipse at each signal frequency. This study introduces a novel scheme employing the principles of quantum teleportation and entangled states of light. It allows achieving broadband suppression of quantum noise in detuned signal recycled-Fabry-Perot--Michelson interferometers, which is the baseline design of the low-frequency detector within the Einstein Telescope xylophone detector, without requiring additional filter cavities or modifications to the core optics of the main interferometer.

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