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Journal of Low Temperature Physics 167 (2012) 872-878
QUBIC: the Q&U Bolometric Interferometer for Cosmology
M. Piat1, E. Battistelli, A. Baù, D. Bennett, L. Bergé2, J.-P. Bernard3, P. De Bernardis, M.-A. Bigot-Sazy1, G. Bordier1, A. Bounab3, E. Bréelle1, E. F. Bunn, M. Calvo, R. Charlassier1, S. Collin2, A. Cruciani, G. Curran, L. Dumoulin2, A. Gault, M. Gervasi, A. Ghribi1, M. Giard3, C. Giordano, Y. Giraud-Héraud1, M. Gradziel, L. Guglielmi1, J.-C. Hamilton1, V. Haynes, J. Kaplan1, A. Korotkov, J. Landé3, B. Maffei, M. Maiello, S. Malu, S. Marnieros2, J. Martino1, S. Masi, L. Montier3, A. Murphy, F. Nati, C. O'Sullivan, F. Pajot4, C. Parisel3, A. Passerini, S. Peterzen, F. Piacentini, L. Piccirillo, G. Pisano, G. Polenta, D. Prêle1, D. Romano, C. Rosset1, M. Salatino, A. Schillaci, G. Sironi, R. Sordini, S. Spinelli, A. Tartari, P. Timbie, G. Tucker, L. Vibert4, F. Voisin1, R. A. Watson, M. Zannoni
QUBIC Collaboration(s)
(06/2012)

The primordial B-mode polarisation of the Cosmic Microwave Background is the imprints of the gravitational wave background generated by inflation. Observing the B-mode is up to now the most direct way to constrain the physics of the primordial Universe, especially inflation. To detect these B-modes, high sensitivity is required as well as an exquisite control of systematics effects. To comply with these requirements, we propose a new instrument called QUBIC (Q and U Bolometric Interferometer for Cosmology) based on bolometric interferometry. The control of systematics is obtained with a close-packed interferometer while bolometers cooled to very low temperature allow for high sensitivity. We present the architecture of this new instrument, the status of the project and the self-calibration technique which allows accurate measurement of the instrumental systematic effects.
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
2 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
3 :  IRAP - Institut de recherche en astrophysique et planétologie
4 :  IAS - Institut d'astrophysique spatiale
APC - Cosmologie et Gravitation
Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique

Physique/Astrophysique/Cosmologie et astrophysique extra-galactique
Cosmic microwave background – Polarisation – Interferometer – Bolometer