Somiya Lab.

Recent advances toward mesoscopic quantum optomechanics

M. Croquette, S. Deléglise, T. Kawasaki K. Komori, M. Kuribayashi, A. Lartaux-Vollard, N. Matsumoto, Y. Michimura, M. Andia, N. Aritomi, R. Braive, T. Briant, S. Briaudeau, S. B. Cataño-Lopez, S. Chua, J. Degallaix, M. Fujimoto, K. Gerashchenko, F. Glotin, P. Gruning, K. Harada, A. Heidmann, D. Hofman, P.-E. Jacquet, T. Jacqmin, O. Kozlova, N. Leroy, V. Loriette, F. Loubar, T. Martel, R. Metzdorff, A. Mikami, L. Najera, L. Neuhaus, S. Otabe, L. Pinard, K. Suzuki, H. Takahashi, K. Takeda, Y. Tominaga, A. van de Walle, N. Yamamoto, K. Somiya, and P.-F. Cohadon
AVS Quantum Sci. 5, 014403 (2023)

Input optics systems of the KAGRA detector during O3GK

KAGRA Collaboration + R. Goetz, M. Heintze, J. Liu, C. Müller, R. Savage, and D. Tanner (corresponding authors: K.Kokeyama and M.Nakano)
arxiv:2210.05934
Progress of Theoretical and Experimental Physics, 2, 023F01 (2023)

Intracavity signal amplification system for next-generation gravitational-wave detectors

K.Somiya, K.Suzuki, S.Otabe, and K.Harada
Phys.Rev.D 107, 122005 (2023)

Noise subtraction from KAGRA O3GK data using Independent Component Analysis

H. Abe et al. (corresponding author: J.Kume)
arxiv:2206.05785
Classic. Quantum Grav., 40, 085015 (2023)

Deep Learning for Detecting Gravitational Waves from Compact Binary Coalescences and Its Visualization by Grad-CAM

S. Sasaoka, Y. Hou, Diego Dominguez, S Garg, N. Koyama, Y. Sakai, Y. Omae, K. Somiya, and H. Takahashi
Prc.Sci.(ICRC2023), 1498 (2023); pre-published, non-refereed

Deep Learning Application for Detecting Gravitational Waves from Core-Collapse Supernovae

S. Sasaoka, Y. Hou, Diego Dominguez, S Garg, N. Koyama, Y. Sakai, Y. Omae, K. Somiya, and H. Takahashi
Prc.Sci.(ICRC2023), 1499 (2023); pre-published, non-refereed

Convolutional neural network for continuous gravitational waves detection

Diego Dominguez, S. Sasaoka, S Garg, Y. Hou, N. Koyama, K. Somiya, and H. Takahashi
Prc.Sci.(ICRC2023), 1519 (2023); pre-published, non-refereed

Comparison of training methods for Convolutional Neural Network model for Gravitational-Wave detection from Neutron Star− Black Hole Binaries

S Garg, S. Sasaoka, Diego Dominguez, Y. Hou, N. Koyama, K. Somiya, H. Takahashi, and M. Ohashi
Prc.Sci.(ICRC2023), 1536 (2023); pre-published, non-refereed

Visualizing Convolutional Neural Network for Classifying Gravitational Waves from Core-Collapse Supernovae

Seiya Sasaoka, Naoki Koyama, Diego Dominguez, Yusuke Sakai, Kentaro Somiya, Yuto Omae, and Hirotaka Takahashi
arxiv:2310.09551
accepted in PRD

Kerr-Enhanced Optical Spring

Sotatsu Otabe, Wataru Usukura, Kaido Suzuki, Kentaro Komori, Yuta Michimura, Ken-ichi Harada, Kentaro Somiya
arxiv:2310.18828
submitted to PRL

Comparative Study of 1D and 2D CNN Models with Attribution Analysis for Gravitational Wave Detection from Compact Binary Coalescences

Seiya Sasaoka, Naoki Koyama, Diego Dominguez, Yusuke Sakai, Kentaro Somiya, Yuto Omae, and Hirotaka Takahashi
in preparation

Photothermal effect in macroscopic optomechanical systems with an intracavity nonlinear optical crystal

S.Otabe, K.Komori, K.Harada, K.Suzuki, Y.Michimura, and K.Somiya
Opt.Express, 30, 42579-42593 (2022)

Prospects for improving the sensitivity of KAGRA gravitational wave detector

Y.Michimura, M.Ando, E.Capocasa, Y.Enomoto, R.Flaminio, S.Haino, K.Hayama, E.Hirose, Y.Itoh, T.Kinugawa, K.Komori, M.Leonardi, N.Mio, K.Nagano, H.Nakano, A.Nishizawa, N.Sago, M.Shibata, H.Shinkai, K.Somiya, H.Takeda, T.Tanaka, S.Tanioka, W.Li-Wei, and K.Yamamoto
The Fifteenth Marcel Grossmann Meeting, pp. 1599-1605 (2022)

The Current Status and Future Prospects of KAGRA, the Large-Scale Cryogenic Gravitational Wave Telescope Built in the Kamioka Underground

H. Abe et al. (corresponding authors: M.Nakano, T.Ushiba, and T.Washimi)
Gallaxies, 10, 3, 63 (2022)

Performance of the KAGRA detector during the first joint observation with GEO 600 (O3GK)

H. Abe et al. (corresponding authors: K.Kokeyama, T.Washimi, and K.Yamamoto)
arxiv:2203.07011
Progress of Theoretical and Experimental Physics, ptac093 (2022)

Localization of gravitational waves using machine learning

Seiya Sasaoka, Yilun Hou, Hirotaka Takahashi, and Kentaro Somiya
arxiv:2202.12784
Phys.Rev.D 105, 103030 (2022)

Current status of space gravitational wave antenna DECIGO and B-DECIGO

Seiji Kawamura et al.
arxiv:2006.13545
Progress of Theoretical and Experimental Physics, 5, 05A105 (2021)

Cryogenic suspension design for a kilometer-scale gravitational-wave detector

KAGRA Collaboration (corresponding author: T.Ushiba)
arxiv:2010.01889
Classic. Quantum Grav., 38, 085013 (2021)

Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector

KAGRA Collaboration (corresponding author: F.E.Pena Arellano)
Classic. Quantum Grav., 38, 065011 (2021)

『量子センシングハンドブック～量子科学が切り拓く新たな領域～』

根来誠監修（4.1節「重力波検出と量子雑音」を宗宮が執筆）
エヌ・ティー・エスホームページ

A back-linked Fabry–Pérot interferometer for space-borne gravitational wave observations

Kiwamu Izumi and Masa-Katsu Fujimoto
arxiv:2011.05483
Progress of Theoretical and Experimental Physics, 7, 073F01 (2021)

Overview of KAGRA : Detector design and construction history

KAGRA Collaboration (corresponding authors: Y.Michimura, K.Somiya, and K.Yamamoto)
arxiv:2005.05574
Progress of Theoretical and Experimental Physics, 5, 05A101 (2021)

Overview of KAGRA : KAGRA science

KAGRA Collaboration (corresponding author: A.Nishizawa)
Progress of Theoretical and Experimental Physics, 5, 05A103 (2021)

Radiative Cooling of the Thermally Isolated System in KAGRA Gravitational Wave Telescope

KAGRA Collaboration (corresponding author: T.Yamada)
Journal of Physics: Conference Series, 1857, 012002 (2021)

Quantum noise reduction techniques in KAGRA

Kentaro Somiya
arxiv:1909.12033 (2019)
European Physical Journal D, 74, 10 (2020)

Diamagnetic levitation of a milligram-scale silica using permanent magnets for the use in a macroscopic quantum measurement

Ryosuke Nakashima
Physics Letters A, 384, 126592 (2020)

Prospects for improving the sensitivity of the cryogenic gravitational wave detector KAGRA

Yuta Michimura, Kentaro Komori, Yutaro Enomoto, Koji Nagano, Atsushi Nishizawa, Eiichi Hirose, Matteo Leonardi, Eleonora Capocasa, Naoki Aritomi, Yuhang Zhao, Raffaele Flaminio, Takafumi Ushiba, Tomohiro Yamada, Li-Wei Wei, Hiroki Takeda, Satoshi Tanioka, Masaki Ando, Kazuhiro Yamamoto, Kazuhiro Hayama, Sadakazu Haino, and Kentaro Somiya
Phys.Rev.D 102, 022008 (2020)

『相対論と宇宙の事典』

安東正樹・白水徹也編集幹事／浅田秀樹・石橋明浩・小林努・真貝寿明・早田次郎・谷口敬介編（6.7節「光の量子雑音」を宗宮が執筆）
朝倉書店ホームページ

重力波望遠鏡における量子制御

Application of independent component analysis to the iKAGRA data

KAGRA Collaboration
Progress of Theoretical and Experimental Physics, 5, 053F01 (2020)

An arm length stabilization system for KAGRA and future gravitational-wave detectors

KAGRA Collaboration
Classical and Quantum Gravity, 37, 035004 (2020)

The status of KAGRA underground cryogenic gravitational wave telescope

KAGRA Collaboration
Journal of Physics: Conference Series, 1342, 012014 (2020)

Design and experimental demonstration of a laser modulation system for future gravitational-wave detectors

Kohei Yamamoto, Keiko Kokeyama, Yuta Michimura, Yutaro Enomoto, Masayuki Nakano, Gui-Guo Ge, Tomoyuki Uehara, Kentaro Somiya, Kiwamu Izumi, Osamu Miyakawa, Takahiro Yamamoto, Takaaki Yokozawa, Yuta Fujikawa, Nobuyuki Fujii, Takaaki Kajita
arxiv:1908.05914 (2019)
Classical and Quantum Gravity, 36, 205009 (2019)

Influence of non-uniformity in sapphire substrates for a gravitational wave telescope

Kentaro Somiya, Eiichi Hirose, Yuta Michimura
arxiv:1907.12785 (2019)
Phys.Rev.D 100, 082005 (2019)

Prospects for improving the sensitivity of KAGRA gravitational wave detector

Yuta Michimura, Masaki Ando, Eleonora Capocasa, Yutaro Enomoto, Raffaele Flaminio, Sadakazu Haino, Kazuhiro Hayama, Eiichi Hirose, Yousuke Itoh, Tomoya Kinugawa, Kentro Komori, Matteo Leonardi, Norikatsu Mio, Koji Nagano, Hiroyuki Nakano, Atsushi Nishizawa, Norichika Sago, Masaru Shibata, Hisaaki Shinkai, Kentaro Somiya, Hiroki Takeda, Takahiro Tanaka, Satoshi Tanioka, Li-Wei Wei, Kazuhiro Yamamoto
arxiv:1906.02866 (2019)

Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA

KAGRA Collaboration
Classical and Quantum Gravity, 36, 095015 (2019)

First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA

KAGRA Collaboration
Classical and Quantum Gravity, 36, 165008 (2019)

KAGRA: 2.5 generation interferometric gravitational wave detector

KAGRA Collaboration
Nature Astronomy 3, 35-40 (2019)

A Direct Approach for the Fluctuation-Dissipation Theorem under Non-Equilibrium Steady-State Conditions

Kentaro Komori, Yutaro Enomoto, Hiroki Takeda, Yuta Michimura, Kentaro Somiya, Masaki Ando, Stefan W. Ballmer
Phys.Rev.D 97, 102001 (2018)

Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA

Abbott, B. P. et al. (KAGRA Collaboration, LIGO Scientific Collaboration and Virgo Collaboration)*
Living Review and Relativity 21:3 (2018)

Particle swarm optimization of the sensitivity of cryogenic gravitational wave detector

Yuta Michimura, Kentaro Komori, Atsushi Nishizawa, Hiroki Takeda, Koji Nagano, Yutaro Enomoto, Kazuhiro Hayama, Kentaro Somiya, and Masaki Ando
Phys.Rev.D 97, 122003 (2018)

Optical design and suspension system of the KAGRA output mode-cleaner

Junko Kasuya, John Winterflood, Ju Li, and Kentaro Somiya
Journal of Physics Conference Series, 957, 012009

Construction of KAGRA: an underground gravitational-wave observatory

KAGRA Collaboration et al.
Progress of Theoretical and Experimental Physics 2018, 013F01

Space Gravitational Wave Antenna DECIGO and B-DECIGO

Seiji Kawamura et al.
J.of Mod.Phys.D, 28, 1845001

Measurement and subtraction of Schumann resonances at 2 gravitational-wave interferometers

M.Coughlin, A.Cirone, P.Meyers, S.Atsuta, V.Boschi, A.Chincarini, N.Christensen, R.De Rosa, A.Effler, I.Fiori, M.Golkowski, M.Guidry, J.Harms, K.Hayama, Y.Kataoka, J.Kubisz, A.Kulak, M.Laxen, J.Mlynarczyk, T.Ogawa, F.Paoletti, J.Salvador, K.Somiya, and E.Thrane
Phys.Rev.D 97, 102007 (2018)

Measurement of optical losses in a high-finesse 300 m filter cavity for broadband quantum noise reduction in future gravitational-wave detectors

E.Capocasa, Y.Guo, M.Eisenmann, Y.Zhao, A.Tomura, K.Arai, Y.Aso, M.Marchio, L.Pinard, P.Prat, K.Somiya, R.Schnabel, M.Tacca, R.Takahashi, D.Tatsumi, M.Leonardi, M.Barsuglia, and R.Flaminio
Phys.Rev.D 98, 022010 (2018)

Mirror actuation design for the interferometer control of the KAGRA gravitational wave telescope

Y.Michimura, T.Shimoda, T.Miyamoto, A.Shoda, K.Okutomi, Y.Fujii, H.Tanaka, M.Barton, R.Takahashi, Y.Aso, T.Akutsu, M.Ando, Y.Enomoto, R.Flaminio, K.Hayama, E.Hirose, Y.Inoue, T.Kajita, M.Kamiizumi, S.Kawamura, K.Kokeyama, K.Komori, R.Kumar, O.Miyakawa, K.Nagano, M.Nakano, N.Ohishi, C.P.Ooi, F.E.P.Arellano, Y.Saito, K.Shimode, K.Somiya, H.Takeda, T.Tomaru, T.Uchiyama, T.Ushiba, K.Yamamoto, T.Yokozawa and H.Yuzurihara
Classical and Quantum Gravity 34 225001

The status of DECIGO

S. Sato et al.
Journal of Physics Conference Series, 840, 012010

Design study and prototype experiment of the KAGRA output mode-cleaner

Kazushiro Yano, Ayaka Kumeta, Kentaro Somiya
Journal of Physics: Conference Series 716 012020

Measurement of Schumann Resonance at Kamioka

S. Atsuta, T. Ogawa, S. Yamaguchi, K. Hayama, A. Araya, N. Kanda, O. Miyakawa, S. Miyoki, A. Nishizawa, K. Ono, Y. Saito, K. Somiya, T. Uchiyama, M. Uyeshima and K. Yano
Journal of Physics: Conference Series 716 012032

Parametric signal amplification to create a stiff optical bar

Kentaro Somiya, Yuu Kataoka, Jumpei Kato, Nana Saito, Kazushiro Yano
arXiv:1403.1222[physics.optics]
Phys. Lett. A 380, 521-524 (2016)

Estimation of losses in a 300 m filter cavity and quantum noise reduction in the KAGRA gravitational-wave detector

Eleonora Capocasa, Matteo Barsuglia, Jérôme Degallaix, Laurent Pinard, Nicolas Straniero, Roman Schnabel, Kentaro Somiya, Yoichi Aso, Daisuke Tatsumi, and Raffaele Flaminio
Phys. Rev. D 93, 082004 (2016)

Physical description of statistical hypothesis testing for a weak-value amplification experiment using a birefringent crystal

Statistical hypothesis testing by weak-value amplification: Proposal and evaluation

Yuki Susa, Saki Tanaka
arXiv:1502.06334[quant-ph]
Phys. Rev. A 92, 012112 (2015)

Design study of the KAGRA output mode-cleaner
- Ayaka Kumeta, Charlotte Bond, Kentaro Somiya
- arXiv:1407.6080[physics.optics]
- Optical Review 22, 149-152 (2015)

Concepts and research for future detectors

F.Acernese et al. (incl. Kentaro Somiya and Jumpei Kato)
General Relativity and Gravitation, 46:1700 (2014)

Method to reduce excess noise of a detuned cavity for application in KAGRA

Shinichiro Ueda, Nana Saito, Daniel Friedrich, Yoichi Aso, Kentaro Somiya (for the KAGRA collaboration)
arXiv:1402.4289[gr-pc]
Class.Quantum Grav. 31, 095003 (2014)
Highlights of 2013-2014

Interferometer design of the KAGRA gravitational wave detector

Yoichi Aso, Yuta Michimura, Kentaro Somiya, Masaki Ando, Osamu Miyakawa, Takanori Sekiguchi, Daisuke Tatsumi, Hiroaki Yamamoto
arXiv:1306.6747[gr-pc]
Phys. Rev. D 88, 043007 (2013)

Reply to “Comment on ‘Optimal probe wave function of weak-value amplification' "

Yuki Susa, Yutaka Shikano, Akio Hosoya
arXiv:1304.1352[quant-ph]
Phys. Rev. A 87, 046102 (2013)

Underground gravitational wave observatories: KAGRA and ET

Michele Punturo and Kentaro Somiya
Int. J. Mod. Phys., 22, 1330010 (2013)

Optimal Probe Wavefunction of Weak-Value Amplification

Yuki Susa, Yutaka Shikano, Akio Hosoya
arXiv:1203.0827[quant-ph]
Phys. Rev. A 85, 052110 (2012)

Detector configuration of KAGRA - the Japanese cryogenic gravitational-wave detector

Kentaro Somiya, for the KAGRA Collaboration
arXiv:1111.7185[gr-qc]
Class.Quantum Grav. 29, 124007 (2012)
Highlights of 2012-2013

Length sensing and control strategies for the LCGT interferometer

Yoichi Aso, Kentaro Somiya, Osamu Miyakawa for the LCGT Collaboration
arXiv:1111.7147[gr-qc]
Class.Quantum Grav. 29, 124008 (2012)

Status of the AEI 10 m prototype

K Dahl et al.
Class.Quantum Grav. 29, 145005 (2012)

The AEI 10 m Prototype Interferometer frequency control using the reference cavity and its angular control

F Kawazoe et al.
J.Phys.Conf.Ser. 363, 012012 (2012)

Scientific objectives of Einstein Telescope

B Sathyaprakash et al.
Class.Quantum Grav. 29, 124013 (2012)

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