March 30, 2007 18:39 WSPC - Proceedings Trim Size: 9.75in x 6.5in MG2006˙proc˙ando DECIGO: the Japanese Space Gravitational Wave Antenna Masaki Ando 1,* , Seiji Kawamura 2 , Takashi Nakamura 3 , Naoki Seto 4 , Kimio Tsubono 1 , Kenji Numata 5 , Ryuichi Takahashi 6 , Mitsuru Musha 7 , Ken-ichi Ueda 7 , Ikkoh Funaki 8 , Shigenori Moriwaki 9 , Takeshi Takashima 8 , Shin-ichiro Sakai 8 , Takashi Sato 10 , Nobuyuki Kanda 11 , Shigeo Nagano 12 , Mizuhiko Hosokawa 12 , Takehiko Ishikawa 13 , Shuichi Sato 2 , Yoichi Aso 1 , Mutsuko Y. Morimoto 2 , Kazuhiro Agatsuma 14 , Tomomi Akutsu 14 , Tomotada Akutsu 5 6, Koh-suke Aoyanagi 15 , Koji Arai 2 , Yuta Arase 14 , Akito Araya 16 , Hideki Asada 17 , Takeshi Chiba 18 , Toshikazu Ebisuzaki 19 , Motohiro Enoki 20 , Yoshiharu Eriguchi 21 , Feng-Lei Hong 30 , Masa-Katsu Fujimoto 2 , Mitsuhiro Fukushima 22 , Toshifumi Futamase 23 , Katsuhiko Ganzu 3 , Tomohiro Harada 24 , Tatsuaki Hashimoto 8 , Kazuhiro Hayama 25 , Wataru Hikida 26 , Yoshiaki Himemoto 27 , Hisashi Hirabayashi 8 , Takashi Hiramatsu 27 , Hideyuki Horisawa 28 , Kiyotomo Ichiki 6 , Takeshi Ikegami 30 , Kaiki T. Inoue 31 , Kunihito Ioka 3 , Koji Ishidoshiro 1 , Hiroyuki Ito 12 , Yousuke Itoh 32 , Shogo Kamagasako 14 , Nobuki Kawashima 31 , Fumiko Kawazoe 33 , Hiroyuki Kirihara 14 , Naoko Kishimoto 8 , Kenta Kiuchi 15 , Werner Klaus 12 , Shiho Kobayashi 34 , Kazunori Kohri 35 , Hiroyuki Koizumi 36 , Yasufumi Kojima 37 , Keiko Kokeyama 33 , Wataru Kokuyama 1 , Kei Kotake 15 , Yoshihide Kozai 38 , Hideaki Kudoh 27 , Hiroo Kunimori 12 , Hitoshi Kuninaka 8 , Kazuaki Kuroda 14 , Kei-ichi Maeda 15 , Hideo Matsuhara 13 , Yasushi Mino 39 , Jun-ichi Miura 7 , Osamu Miyakawa 40 , Shinji Miyoki 14 , Tomoko Morioka 33 , Toshiyuki Morisawa 26 , Shinji Mukohyama 27 , Isao Naito 41 , Noriyasu Nakagawa 14 , Kouji Nakamura 6 , Hiroyuki Nakano 1 , Kenichi Nakao 11 , Shinichi Nakasuka 36 , Yoshinori Nakayama 42 , Erina Nishida 33 , Kazutaka Nishiyama 8 , Atsushi Nishizawa 43 , Yoshito Niwa 43 , Masatake Ohashi 14 , Naoko Ohishi 44 , Masashi Ohkawa 45 , Akira Okutomi 14 , Kouji Onozato 1 , Kenichi Oohara 45 , Norichika Sago 46 , Motoyuki Saijo 47 , Masaaki Sakagami 43 , Shihori Sakata 33 , Misao Sasaki 26 , Masaru Shibata 21 , Hisaaki Shinkai 48 , Kentaro Somiya 49 , Hajime Sotani 50 , Naoshi Sugiyama 6 , Hideyuki Tagoshi 46 , Tadayuki Takahashi 8 , Ryutaro Takahashi 2 , Kakeru Takahashi 1 , Hirotaka Takahashi 49 , Takamori Akiteru 16 , Tadashi Takano 8 , Takahiro Tanaka 3 , Keisuke Taniguchi 51 , Atsushi Taruya 27 , Hiroyuki Tashiro 3 , Mitsuru Tokuda 11 , Masao Tokunari 14 , Morio Toyoshima 12 , Shinji Tsujikawa 38 , Yoshiki Tsunesada 52 , Masayoshi Utashima 8 , Hiroshi Yamakawa 53 , Kazuhiro Yamamoto 14 , Toshitaka Yamazaki 2 , Jun’ichi Yokoyama 29 , Chul-Moon Yoo 11 , Shijun Yoshida 54 , Taizoh Yoshino 55 1 Department of Physics, The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan, * E-mail: ando@granite.phys.s.u-tokyo.ac.jp 2 TAMA Project, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan, 3 Department of Physics, Kyoto University, Kyoto 606-8502, Japan, 4 Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575, U.S.A., 5 NASA Goddard Space Flight Center, Code 663, 8800 Greenbelt Rd., Greenbelt, MD20771, U.S.A., 6 Division of Theoretical Astronomy, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan, 7 Institute for Laser Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan, 8 Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Kanagawa 229-8510, Japan, 9 Department of Advanced Materials Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan, 10 Department of Electrical and Electronic Engineering, Faculty of Engineering, Niigata 1