Quantum noise reduction techniques in KAGRA

被引：1
|
作者：
Somiya, Kentaro [1 ]
机构：
[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, 2-12-1 Oh Okayama, Tokyo 1528551, Japan
来源：
EUROPEAN PHYSICAL JOURNAL D | 2020年 / 74卷 / 01期
关键词：
Thermal noise - Abstracting - Cryogenics - Gravity waves - Noise abatement;
D O I：
10.1140/epjd/e2019-100471-2
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
KAGRA is the first large-scale gravitational-wave detector with cryogenic test masses. Its target sensitivity is limited mostly by quantum noise in the observation frequency band owing to the remarkable reduction of thermal noise at cryogenic temperatures. It is thus essential to reduce quantum noise, and KAGRA is designed to implement two quantum noise reduction techniques. KAGRA has already started considering an upgrade plan, in which a few more new quantum noise reduction techniques will be incorporated. In this article, we report the currently implemented quantum noise reduction techniques for KAGRA and those that will be implemented in the near future.
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页数：10
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