Study of acceleration measurement in gravitational wave detection. (3rd March 2022)

• Record Type: Journal Article
• Authors: Li, Junlang; Zhang, Teng
• Is Part Of: Classical and quantum gravity. Volume 39:Number 5(2022)
• Publication Date: 2022-03-03
• Subjects: gravitational wave detection -- quantum noise -- acceleration-meter; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/ac4b98
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: Position-meter and speed-meter interferometers have been analysed for detecting gravitational waves. Speed-meter is proposed to reduce the radiation pressure noise, which is dominant at low frequency. We introduce the concept of acceleration measurement in comparison with position and speed measurement. In this paper, we describe a general acceleration measurement and derive its standard quantum limit. We provide an example of an acceleration-meter interferometer configuration. We show that shot noise dominates at low frequency following a frequency dependence of 1/Ω 2, while radiation pressure noise is constant. The acceleration-meter has even a stronger radiation pressure noise suppression than speed-meter.