QUBIC: the Q&U Bolometric Interferometer for Cosmology

Abstract : 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.

Contributor : Michel Piat <>
Submitted on : Wednesday, September 26, 2012 - 7:15:10 PM
Last modification on : Wednesday, October 12, 2016 - 1:16:49 AM




M. Piat, E. Battistelli, A. Baù, D. Bennett, L. Bergé, et al.. QUBIC: the Q&U Bolometric Interferometer for Cosmology. Journal of Low Temperature Physics, Springer Verlag (Germany), 2012, 167, pp.872-878. <10.1007/S10909-012-0522-X>. <hal-00735821>




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