Summary:
Project goals are :
- to devise optimized strategies for detection and characterization of the CMB B-mode polarization signals from the ground and satellite platforms
- to contribute to the development of the satellite mission concepts: CORE/PRISM and LiteBIRD
- to contribute to the development of the ground based observational programs: POLARBEAR, POLARBEAR-2 and SIMONS ARRAY and later the so-called STAGE-IV experiments
- to analyse actual data sets as collected by the POLARBEAR experiments.

French members :
J. Errard, D. Beck, M. Bucher, H. Duc Thong, B. Maffei, G. Patanchon, R. Stompor, M. Tristram

Japanese members :
H. Ishinoi, A. Ducourt, M. Hasagawa, M. Hazumi, N. Katayama, T. Matsumura, H. Sugai, S. Uozumi

References :
[1] POLARBEAR Collaboration, "Evidence for Gravitational Lensing of the Cosmic Microwave Background Polarization from Cross-Correlation with the Cosmic Infrared Background", Physical Review Letters, Volume 112, Issue 13, id.131302, 2014
[2] POLARBEAR Collaboration, "Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum with the POLARBEAR Experiment", Physical Review Letters, Volume 113, Issue 2, id.021301, 2014
[3] COrE/PRISM Collaboration, "PRISM (Polarized Radiation Imaging and Spectroscopy Mission): an extended white paper", Journal of Cosmology and Astroparticle Physics, Issue 02, article id. 006, 2014
[4] LiTEBIRD Collaboration, "Mission Design of LiteBIRD", Journal of Low Temperature Physics, Volume 176, Issue 5-6, pp. 733-740, 2014
[5] POLARBEAR Collaboration,"POLARBEAR constraints on cosmic birefringence and primordial magnetic fields", Physical Review D, Volume 92, Issue 12, id.123509, (2015);
[6] LiteBIRD Collaboration, "LiteBIRD: Mission Overview and Focal Plane Layout", Journal of Low Temperature Physics, Volume 184, Issue 3-4, pp. 824-831, (2016);
[7] POLARBEAR Collaboration, " The Polarbear-2 and the Simons Array Experiments", Journal of Low Temperature Physics, Volume 184, Issue 3-4, pp. 805-810, (2016);
[8] Errard et al, " Robust forecasts on fundamental physics from the foreground-obscured, gravitationally-lensed CMB polarization", Journal of Cosmology and Astroparticle Physics, Issue 03, article id. 052 (2016).

website :
POLARBEAR experiment: http://bolo.berkeley.edu/polarbear/
LiTEBIRD mission: http://litebird.jp/
CORE/PRISM mission: http://www.prism-mission.org