QUBIC: the Q&U Bolometric Interferometer for Cosmology

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,...

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Bibliographic Details
Published in:Journal of low temperature physics 2012-06, Vol.167 (5-6), p.872-878
Main Authors: Piat, M., Battistelli, E., Baù, A., Bennett, D., Bergé, L., Bernard, J.-P., de Bernardis, P., Bigot-Sazy, M.-A., Bordier, G., Bounab, A., Bréelle, E., Bunn, E. F., Calvo, M., Charlassier, R., Collin, S., Cruciani, A., Curran, G., Dumoulin, L., Gault, A., Gervasi, M., Ghribi, A., Giard, M., Giordano, C., Giraud-Héraud, Y., Gradziel, M., Guglielmi, L., Hamilton, J.-C., Haynes, V., Kaplan, J., Korotkov, A., Landé, J., Maffei, B., Maiello, M., Malu, S., Marnieros, S., Martino, J., Masi, S., Montier, L., Murphy, A., Nati, F., O’Sullivan, C., Pajot, F., Parisel, C., Passerini, A., Peterzen, S., Piacentini, F., Piccirillo, L., Pisano, G., Polenta, G., Prêle, D., Romano, D., Rosset, C., Salatino, M., Schillaci, A., Sironi, G., Sordini, R., Spinelli, S., Tartari, A., Timbie, P., Tucker, G., Vibert, L., Voisin, F., Watson, R. A., Zannoni, M.
Format: Article
Language:English
Subjects:
Astrophysics
Characterization and Evaluation of Materials
Condensed Matter Physics
Cosmology and Extra-Galactic Astrophysics
Magnetic Materials
Magnetism
Physics
Physics and Astronomy
Sciences of the Universe
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Summary: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.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-012-0522-x