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Prospects for improving the sensitivity of KAGRA gravitational wave detector

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Yuta Michimura
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Yuta Michimura
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30 Jun 2018, 12:46
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03 Jul 2018, 05:55
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03 Jul 2018, 05:55
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02 Jul 2018, 07:04
30 Jun 2018, 12:47
Slides on KAGRA upgrades for 15th Marcel Grossmann Meeting, July 2, 2018.

Michimura, Yuta; Ando, Masaki; Enomoto, Yutaro; Haino, Sadakazu; Hayama, Kazuhiro; Hirose, Eiichi; Itoh, Yousuke; Kinugawa, Tomoya; Komori, Kentaro; Leonardi, Matteo; Mio, Norikatsu; Nagano, Koji; Nakano, Hiroyuki; Nishizawa, Atsushi; Sago, Norichika; Shibata, Masaru; Shinkai, Hisaaki; Takeda, Hiroki; Tanaka, Takahiro; Tanioka, Satoshi; Wei, Li-Wei; Yamamoto, Kazuhiro

The first direct detections of gravitational waves from binary black holes and binary neutron star systems by Advanced LIGO and Advanced Virgo have opened a vast new frontier in physics and astronomy. For better source localization and more precise binary parameter estimation, it is essential to extend the global network of advanced gravitational wave telescopes, with detectors such as KAGRA in Japan and the third LIGO detector in India. It is also essential to improve the sensitivity of these detectors beyond their designed sensitivity.
Of all the state of the art detectors, KAGRA has two technologically unique features: it is constructed at a seismically quiet underground site, and it uses sapphire mirrors at cryogenic temperatures to reduce thermal noise. Therefore, KAGRA has unique potential to further improve its sensitivity.
In this talk, we discuss the prospects for improving the sensitivity of KAGRA detector, and describe possible scientific targets of upgraded KAGRA in the future.
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