LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection

M. Hazumi, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, S. Cho, A. Cukierman, D. W. Curtis, T. de Haan, M. DobbsA. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, Hirokazu Ishino, O. Jeong, H. Kanai, D. Kaneko, S. Kashima, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Patanchon, G. Pisano, G. Rebeiz, M. Remazeilles, P. L. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, M. Sawada, Y. Segawa, Y. Sekimoto, U. Seljak, B. D. Sherwin, T. Shimizu, K. Shinozaki, R. Stompor, H. Sugai, H. Sugita, A. Suzuki, J. Suzuki, O. Tajima, S. Takada, R. Takaku, S. Takakura, S. Takatori, D. Tanabe, E. Taylor, K. L. Thompson, B. Thorne, T. Tomaru, T. Tomida, N. Tomita, M. Tristram, C. Tucker, P. Turin, M. Tsujimoto, Satoru Uozumi, S. Utsunomiya, Y. Uzawa, F. Vansyngel, I. K. Wehus, B. Westbrook, M. Willer, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, M. Yoshida

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

LiteBIRD is a candidate satellite for a strategic large mission of JAXA. With its expected launch in the middle of the 2020s with a H3 rocket, LiteBIRD plans to map the polarization of the cosmic microwave background radiation over the full sky with unprecedented precision. The full success of LiteBIRD is to achieve δr< 0.001 , where δr is the total error on the tensor-to-scalar ratio r. The required angular coverage corresponds to 2 ≤ ℓ≤ 200 , where ℓ is the multipole moment. This allows us to test well-motivated cosmic inflation models. Full-sky surveys for 3 years at a Lagrangian point L2 will be carried out for 15 frequency bands between 34 and 448 GHz with two telescopes to achieve the total sensitivity of 2.5 μ K arcmin with a typical angular resolution of 0.5 at 150 GHz. Each telescope is equipped with a half-wave plate system for polarization signal modulation and a focal plane filled with polarization-sensitive TES bolometers. A cryogenic system provides a 100 mK base temperature for the focal planes and 2 K and 5 K stages for optical components.

Original languageEnglish
Pages (from-to)443-452
Number of pages10
JournalJournal of Low Temperature Physics
Volume194
Issue number5-6
DOIs
Publication statusPublished - Mar 15 2019

Fingerprint

Cosmic rays
background radiation
Satellites
Polarization
Telescopes
polarization
telescopes
cosmic microwave background radiation
Bolometers
bolometers
Rockets
rockets
angular resolution
Cryogenics
multipoles
Frequency bands
cryogenics
Tensors
sky
Microwaves

Keywords

  • B-mode polarization
  • Cosmic inflation
  • Cosmic microwave background
  • Primordial gravitational wave
  • Quantum gravity
  • Satellite

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

LiteBIRD : A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection. / Hazumi, M.; Ade, P. A.R.; Akiba, Y.; Alonso, D.; Arnold, K.; Aumont, J.; Baccigalupi, C.; Barron, D.; Basak, S.; Beckman, S.; Borrill, J.; Boulanger, F.; Bucher, M.; Calabrese, E.; Chinone, Y.; Cho, S.; Cukierman, A.; Curtis, D. W.; de Haan, T.; Dobbs, M.; Dominjon, A.; Dotani, T.; Duband, L.; Ducout, A.; Dunkley, J.; Duval, J. M.; Elleflot, T.; Eriksen, H. K.; Errard, J.; Fischer, J.; Fujino, T.; Funaki, T.; Fuskeland, U.; Ganga, K.; Goeckner-Wald, N.; Grain, J.; Halverson, N. W.; Hamada, T.; Hasebe, T.; Hasegawa, M.; Hattori, K.; Hattori, M.; Hayes, L.; Hidehira, N.; Hill, C. A.; Hilton, G.; Hubmayr, J.; Ichiki, K.; Iida, T.; Imada, H.; Inoue, M.; Inoue, Y.; Irwin, K. D.; Ishino, Hirokazu; Jeong, O.; Kanai, H.; Kaneko, D.; Kashima, S.; Katayama, N.; Kawasaki, T.; Kernasovskiy, S. A.; Keskitalo, R.; Kibayashi, A.; Kida, Y.; Kimura, K.; Kisner, T.; Kohri, K.; Komatsu, E.; Komatsu, K.; Kuo, C. L.; Kurinsky, N. A.; Kusaka, A.; Lazarian, A.; Lee, A. T.; Li, D.; Linder, E.; Maffei, B.; Mangilli, A.; Maki, M.; Matsumura, T.; Matsuura, S.; Meilhan, D.; Mima, S.; Minami, Y.; Mitsuda, K.; Montier, L.; Nagai, M.; Nagasaki, T.; Nagata, R.; Nakajima, M.; Nakamura, S.; Namikawa, T.; Naruse, M.; Nishino, H.; Nitta, T.; Noguchi, T.; Ogawa, H.; Oguri, S.; Okada, N.; Okamoto, A.; Okamura, T.; Otani, C.; Patanchon, G.; Pisano, G.; Rebeiz, G.; Remazeilles, M.; Richards, P. L.; Sakai, S.; Sakurai, Y.; Sato, Y.; Sato, N.; Sawada, M.; Segawa, Y.; Sekimoto, Y.; Seljak, U.; Sherwin, B. D.; Shimizu, T.; Shinozaki, K.; Stompor, R.; Sugai, H.; Sugita, H.; Suzuki, A.; Suzuki, J.; Tajima, O.; Takada, S.; Takaku, R.; Takakura, S.; Takatori, S.; Tanabe, D.; Taylor, E.; Thompson, K. L.; Thorne, B.; Tomaru, T.; Tomida, T.; Tomita, N.; Tristram, M.; Tucker, C.; Turin, P.; Tsujimoto, M.; Uozumi, Satoru; Utsunomiya, S.; Uzawa, Y.; Vansyngel, F.; Wehus, I. K.; Westbrook, B.; Willer, M.; Whitehorn, N.; Yamada, Y.; Yamamoto, R.; Yamasaki, N.; Yamashita, T.; Yoshida, M.

In: Journal of Low Temperature Physics, Vol. 194, No. 5-6, 15.03.2019, p. 443-452.

Research output: Contribution to journalArticle

Hazumi, M, Ade, PAR, Akiba, Y, Alonso, D, Arnold, K, Aumont, J, Baccigalupi, C, Barron, D, Basak, S, Beckman, S, Borrill, J, Boulanger, F, Bucher, M, Calabrese, E, Chinone, Y, Cho, S, Cukierman, A, Curtis, DW, de Haan, T, Dobbs, M, Dominjon, A, Dotani, T, Duband, L, Ducout, A, Dunkley, J, Duval, JM, Elleflot, T, Eriksen, HK, Errard, J, Fischer, J, Fujino, T, Funaki, T, Fuskeland, U, Ganga, K, Goeckner-Wald, N, Grain, J, Halverson, NW, Hamada, T, Hasebe, T, Hasegawa, M, Hattori, K, Hattori, M, Hayes, L, Hidehira, N, Hill, CA, Hilton, G, Hubmayr, J, Ichiki, K, Iida, T, Imada, H, Inoue, M, Inoue, Y, Irwin, KD, Ishino, H, Jeong, O, Kanai, H, Kaneko, D, Kashima, S, Katayama, N, Kawasaki, T, Kernasovskiy, SA, Keskitalo, R, Kibayashi, A, Kida, Y, Kimura, K, Kisner, T, Kohri, K, Komatsu, E, Komatsu, K, Kuo, CL, Kurinsky, NA, Kusaka, A, Lazarian, A, Lee, AT, Li, D, Linder, E, Maffei, B, Mangilli, A, Maki, M, Matsumura, T, Matsuura, S, Meilhan, D, Mima, S, Minami, Y, Mitsuda, K, Montier, L, Nagai, M, Nagasaki, T, Nagata, R, Nakajima, M, Nakamura, S, Namikawa, T, Naruse, M, Nishino, H, Nitta, T, Noguchi, T, Ogawa, H, Oguri, S, Okada, N, Okamoto, A, Okamura, T, Otani, C, Patanchon, G, Pisano, G, Rebeiz, G, Remazeilles, M, Richards, PL, Sakai, S, Sakurai, Y, Sato, Y, Sato, N, Sawada, M, Segawa, Y, Sekimoto, Y, Seljak, U, Sherwin, BD, Shimizu, T, Shinozaki, K, Stompor, R, Sugai, H, Sugita, H, Suzuki, A, Suzuki, J, Tajima, O, Takada, S, Takaku, R, Takakura, S, Takatori, S, Tanabe, D, Taylor, E, Thompson, KL, Thorne, B, Tomaru, T, Tomida, T, Tomita, N, Tristram, M, Tucker, C, Turin, P, Tsujimoto, M, Uozumi, S, Utsunomiya, S, Uzawa, Y, Vansyngel, F, Wehus, IK, Westbrook, B, Willer, M, Whitehorn, N, Yamada, Y, Yamamoto, R, Yamasaki, N, Yamashita, T & Yoshida, M 2019, 'LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection', Journal of Low Temperature Physics, vol. 194, no. 5-6, pp. 443-452. https://doi.org/10.1007/s10909-019-02150-5
Hazumi, M. ; Ade, P. A.R. ; Akiba, Y. ; Alonso, D. ; Arnold, K. ; Aumont, J. ; Baccigalupi, C. ; Barron, D. ; Basak, S. ; Beckman, S. ; Borrill, J. ; Boulanger, F. ; Bucher, M. ; Calabrese, E. ; Chinone, Y. ; Cho, S. ; Cukierman, A. ; Curtis, D. W. ; de Haan, T. ; Dobbs, M. ; Dominjon, A. ; Dotani, T. ; Duband, L. ; Ducout, A. ; Dunkley, J. ; Duval, J. M. ; Elleflot, T. ; Eriksen, H. K. ; Errard, J. ; Fischer, J. ; Fujino, T. ; Funaki, T. ; Fuskeland, U. ; Ganga, K. ; Goeckner-Wald, N. ; Grain, J. ; Halverson, N. W. ; Hamada, T. ; Hasebe, T. ; Hasegawa, M. ; Hattori, K. ; Hattori, M. ; Hayes, L. ; Hidehira, N. ; Hill, C. A. ; Hilton, G. ; Hubmayr, J. ; Ichiki, K. ; Iida, T. ; Imada, H. ; Inoue, M. ; Inoue, Y. ; Irwin, K. D. ; Ishino, Hirokazu ; Jeong, O. ; Kanai, H. ; Kaneko, D. ; Kashima, S. ; Katayama, N. ; Kawasaki, T. ; Kernasovskiy, S. A. ; Keskitalo, R. ; Kibayashi, A. ; Kida, Y. ; Kimura, K. ; Kisner, T. ; Kohri, K. ; Komatsu, E. ; Komatsu, K. ; Kuo, C. L. ; Kurinsky, N. A. ; Kusaka, A. ; Lazarian, A. ; Lee, A. T. ; Li, D. ; Linder, E. ; Maffei, B. ; Mangilli, A. ; Maki, M. ; Matsumura, T. ; Matsuura, S. ; Meilhan, D. ; Mima, S. ; Minami, Y. ; Mitsuda, K. ; Montier, L. ; Nagai, M. ; Nagasaki, T. ; Nagata, R. ; Nakajima, M. ; Nakamura, S. ; Namikawa, T. ; Naruse, M. ; Nishino, H. ; Nitta, T. ; Noguchi, T. ; Ogawa, H. ; Oguri, S. ; Okada, N. ; Okamoto, A. ; Okamura, T. ; Otani, C. ; Patanchon, G. ; Pisano, G. ; Rebeiz, G. ; Remazeilles, M. ; Richards, P. L. ; Sakai, S. ; Sakurai, Y. ; Sato, Y. ; Sato, N. ; Sawada, M. ; Segawa, Y. ; Sekimoto, Y. ; Seljak, U. ; Sherwin, B. D. ; Shimizu, T. ; Shinozaki, K. ; Stompor, R. ; Sugai, H. ; Sugita, H. ; Suzuki, A. ; Suzuki, J. ; Tajima, O. ; Takada, S. ; Takaku, R. ; Takakura, S. ; Takatori, S. ; Tanabe, D. ; Taylor, E. ; Thompson, K. L. ; Thorne, B. ; Tomaru, T. ; Tomida, T. ; Tomita, N. ; Tristram, M. ; Tucker, C. ; Turin, P. ; Tsujimoto, M. ; Uozumi, Satoru ; Utsunomiya, S. ; Uzawa, Y. ; Vansyngel, F. ; Wehus, I. K. ; Westbrook, B. ; Willer, M. ; Whitehorn, N. ; Yamada, Y. ; Yamamoto, R. ; Yamasaki, N. ; Yamashita, T. ; Yoshida, M. / LiteBIRD : A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection. In: Journal of Low Temperature Physics. 2019 ; Vol. 194, No. 5-6. pp. 443-452.
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title = "LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection",
abstract = "LiteBIRD is a candidate satellite for a strategic large mission of JAXA. With its expected launch in the middle of the 2020s with a H3 rocket, LiteBIRD plans to map the polarization of the cosmic microwave background radiation over the full sky with unprecedented precision. The full success of LiteBIRD is to achieve δr< 0.001 , where δr is the total error on the tensor-to-scalar ratio r. The required angular coverage corresponds to 2 ≤ ℓ≤ 200 , where ℓ is the multipole moment. This allows us to test well-motivated cosmic inflation models. Full-sky surveys for 3 years at a Lagrangian point L2 will be carried out for 15 frequency bands between 34 and 448 GHz with two telescopes to achieve the total sensitivity of 2.5 μ K arcmin with a typical angular resolution of 0.5 ∘ at 150 GHz. Each telescope is equipped with a half-wave plate system for polarization signal modulation and a focal plane filled with polarization-sensitive TES bolometers. A cryogenic system provides a 100 mK base temperature for the focal planes and 2 K and 5 K stages for optical components.",
keywords = "B-mode polarization, Cosmic inflation, Cosmic microwave background, Primordial gravitational wave, Quantum gravity, Satellite",
author = "M. Hazumi and Ade, {P. A.R.} and Y. Akiba and D. Alonso and K. Arnold and J. Aumont and C. Baccigalupi and D. Barron and S. Basak and S. Beckman and J. Borrill and F. Boulanger and M. Bucher and E. Calabrese and Y. Chinone and S. Cho and A. Cukierman and Curtis, {D. W.} and {de Haan}, T. and M. Dobbs and A. Dominjon and T. Dotani and L. Duband and A. Ducout and J. Dunkley and Duval, {J. M.} and T. Elleflot and Eriksen, {H. K.} and J. Errard and J. Fischer and T. Fujino and T. Funaki and U. Fuskeland and K. Ganga and N. Goeckner-Wald and J. Grain and Halverson, {N. W.} and T. Hamada and T. Hasebe and M. Hasegawa and K. Hattori and M. Hattori and L. Hayes and N. Hidehira and Hill, {C. A.} and G. Hilton and J. Hubmayr and K. Ichiki and T. Iida and H. Imada and M. Inoue and Y. Inoue and Irwin, {K. D.} and Hirokazu Ishino and O. Jeong and H. Kanai and D. Kaneko and S. Kashima and N. Katayama and T. Kawasaki and Kernasovskiy, {S. A.} and R. Keskitalo and A. Kibayashi and Y. Kida and K. Kimura and T. Kisner and K. Kohri and E. Komatsu and K. Komatsu and Kuo, {C. L.} and Kurinsky, {N. A.} and A. Kusaka and A. Lazarian and Lee, {A. T.} and D. Li and E. Linder and B. Maffei and A. Mangilli and M. Maki and T. Matsumura and S. Matsuura and D. Meilhan and S. Mima and Y. Minami and K. Mitsuda and L. Montier and M. Nagai and T. Nagasaki and R. Nagata and M. Nakajima and S. Nakamura and T. Namikawa and M. Naruse and H. Nishino and T. Nitta and T. Noguchi and H. Ogawa and S. Oguri and N. Okada and A. Okamoto and T. Okamura and C. Otani and G. Patanchon and G. Pisano and G. Rebeiz and M. Remazeilles and Richards, {P. L.} and S. Sakai and Y. Sakurai and Y. Sato and N. Sato and M. Sawada and Y. Segawa and Y. Sekimoto and U. Seljak and Sherwin, {B. D.} and T. Shimizu and K. Shinozaki and R. Stompor and H. Sugai and H. Sugita and A. Suzuki and J. Suzuki and O. Tajima and S. Takada and R. Takaku and S. Takakura and S. Takatori and D. Tanabe and E. Taylor and Thompson, {K. L.} and B. Thorne and T. Tomaru and T. Tomida and N. Tomita and M. Tristram and C. Tucker and P. Turin and M. Tsujimoto and Satoru Uozumi and S. Utsunomiya and Y. Uzawa and F. Vansyngel and Wehus, {I. K.} and B. Westbrook and M. Willer and N. Whitehorn and Y. Yamada and R. Yamamoto and N. Yamasaki and T. Yamashita and M. Yoshida",
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month = "3",
day = "15",
doi = "10.1007/s10909-019-02150-5",
language = "English",
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pages = "443--452",
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issn = "0022-2291",
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TY - JOUR

T1 - LiteBIRD

T2 - A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection

AU - Hazumi, M.

AU - Ade, P. A.R.

AU - Akiba, Y.

AU - Alonso, D.

AU - Arnold, K.

AU - Aumont, J.

AU - Baccigalupi, C.

AU - Barron, D.

AU - Basak, S.

AU - Beckman, S.

AU - Borrill, J.

AU - Boulanger, F.

AU - Bucher, M.

AU - Calabrese, E.

AU - Chinone, Y.

AU - Cho, S.

AU - Cukierman, A.

AU - Curtis, D. W.

AU - de Haan, T.

AU - Dobbs, M.

AU - Dominjon, A.

AU - Dotani, T.

AU - Duband, L.

AU - Ducout, A.

AU - Dunkley, J.

AU - Duval, J. M.

AU - Elleflot, T.

AU - Eriksen, H. K.

AU - Errard, J.

AU - Fischer, J.

AU - Fujino, T.

AU - Funaki, T.

AU - Fuskeland, U.

AU - Ganga, K.

AU - Goeckner-Wald, N.

AU - Grain, J.

AU - Halverson, N. W.

AU - Hamada, T.

AU - Hasebe, T.

AU - Hasegawa, M.

AU - Hattori, K.

AU - Hattori, M.

AU - Hayes, L.

AU - Hidehira, N.

AU - Hill, C. A.

AU - Hilton, G.

AU - Hubmayr, J.

AU - Ichiki, K.

AU - Iida, T.

AU - Imada, H.

AU - Inoue, M.

AU - Inoue, Y.

AU - Irwin, K. D.

AU - Ishino, Hirokazu

AU - Jeong, O.

AU - Kanai, H.

AU - Kaneko, D.

AU - Kashima, S.

AU - Katayama, N.

AU - Kawasaki, T.

AU - Kernasovskiy, S. A.

AU - Keskitalo, R.

AU - Kibayashi, A.

AU - Kida, Y.

AU - Kimura, K.

AU - Kisner, T.

AU - Kohri, K.

AU - Komatsu, E.

AU - Komatsu, K.

AU - Kuo, C. L.

AU - Kurinsky, N. A.

AU - Kusaka, A.

AU - Lazarian, A.

AU - Lee, A. T.

AU - Li, D.

AU - Linder, E.

AU - Maffei, B.

AU - Mangilli, A.

AU - Maki, M.

AU - Matsumura, T.

AU - Matsuura, S.

AU - Meilhan, D.

AU - Mima, S.

AU - Minami, Y.

AU - Mitsuda, K.

AU - Montier, L.

AU - Nagai, M.

AU - Nagasaki, T.

AU - Nagata, R.

AU - Nakajima, M.

AU - Nakamura, S.

AU - Namikawa, T.

AU - Naruse, M.

AU - Nishino, H.

AU - Nitta, T.

AU - Noguchi, T.

AU - Ogawa, H.

AU - Oguri, S.

AU - Okada, N.

AU - Okamoto, A.

AU - Okamura, T.

AU - Otani, C.

AU - Patanchon, G.

AU - Pisano, G.

AU - Rebeiz, G.

AU - Remazeilles, M.

AU - Richards, P. L.

AU - Sakai, S.

AU - Sakurai, Y.

AU - Sato, Y.

AU - Sato, N.

AU - Sawada, M.

AU - Segawa, Y.

AU - Sekimoto, Y.

AU - Seljak, U.

AU - Sherwin, B. D.

AU - Shimizu, T.

AU - Shinozaki, K.

AU - Stompor, R.

AU - Sugai, H.

AU - Sugita, H.

AU - Suzuki, A.

AU - Suzuki, J.

AU - Tajima, O.

AU - Takada, S.

AU - Takaku, R.

AU - Takakura, S.

AU - Takatori, S.

AU - Tanabe, D.

AU - Taylor, E.

AU - Thompson, K. L.

AU - Thorne, B.

AU - Tomaru, T.

AU - Tomida, T.

AU - Tomita, N.

AU - Tristram, M.

AU - Tucker, C.

AU - Turin, P.

AU - Tsujimoto, M.

AU - Uozumi, Satoru

AU - Utsunomiya, S.

AU - Uzawa, Y.

AU - Vansyngel, F.

AU - Wehus, I. K.

AU - Westbrook, B.

AU - Willer, M.

AU - Whitehorn, N.

AU - Yamada, Y.

AU - Yamamoto, R.

AU - Yamasaki, N.

AU - Yamashita, T.

AU - Yoshida, M.

PY - 2019/3/15

Y1 - 2019/3/15

N2 - LiteBIRD is a candidate satellite for a strategic large mission of JAXA. With its expected launch in the middle of the 2020s with a H3 rocket, LiteBIRD plans to map the polarization of the cosmic microwave background radiation over the full sky with unprecedented precision. The full success of LiteBIRD is to achieve δr< 0.001 , where δr is the total error on the tensor-to-scalar ratio r. The required angular coverage corresponds to 2 ≤ ℓ≤ 200 , where ℓ is the multipole moment. This allows us to test well-motivated cosmic inflation models. Full-sky surveys for 3 years at a Lagrangian point L2 will be carried out for 15 frequency bands between 34 and 448 GHz with two telescopes to achieve the total sensitivity of 2.5 μ K arcmin with a typical angular resolution of 0.5 ∘ at 150 GHz. Each telescope is equipped with a half-wave plate system for polarization signal modulation and a focal plane filled with polarization-sensitive TES bolometers. A cryogenic system provides a 100 mK base temperature for the focal planes and 2 K and 5 K stages for optical components.

AB - LiteBIRD is a candidate satellite for a strategic large mission of JAXA. With its expected launch in the middle of the 2020s with a H3 rocket, LiteBIRD plans to map the polarization of the cosmic microwave background radiation over the full sky with unprecedented precision. The full success of LiteBIRD is to achieve δr< 0.001 , where δr is the total error on the tensor-to-scalar ratio r. The required angular coverage corresponds to 2 ≤ ℓ≤ 200 , where ℓ is the multipole moment. This allows us to test well-motivated cosmic inflation models. Full-sky surveys for 3 years at a Lagrangian point L2 will be carried out for 15 frequency bands between 34 and 448 GHz with two telescopes to achieve the total sensitivity of 2.5 μ K arcmin with a typical angular resolution of 0.5 ∘ at 150 GHz. Each telescope is equipped with a half-wave plate system for polarization signal modulation and a focal plane filled with polarization-sensitive TES bolometers. A cryogenic system provides a 100 mK base temperature for the focal planes and 2 K and 5 K stages for optical components.

KW - B-mode polarization

KW - Cosmic inflation

KW - Cosmic microwave background

KW - Primordial gravitational wave

KW - Quantum gravity

KW - Satellite

UR - http://www.scopus.com/inward/record.url?scp=85062570840&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85062570840&partnerID=8YFLogxK

U2 - 10.1007/s10909-019-02150-5

DO - 10.1007/s10909-019-02150-5

M3 - Article

AN - SCOPUS:85062570840

VL - 194

SP - 443

EP - 452

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 5-6

ER -