Abstract
The Q & U Bolometric Interferometer for Cosmology (QUBIC) is a cosmology experiment that aims to measure the B-mode polarization of the cosmic microwave background (CMB). Measurements of the primordial B-mode pattern of the CMB polarization are in fact among the most exciting goals in cosmology as it would allow testing of the inflationary paradigm. Many experiments are attempting to measure the B-modes, from the ground and the stratosphere, using imaging Stokes polarimeters. The QUBIC collaboration developed an innovative concept to measure CMB polarization using bolometric interferometry. This approach mixes the high sensitivity of bolometric detectors with the accurate control of systematics due to the interferometric layout of the instrument. We present the calibration results for the Technological Demonstrator, before its commissioning in the Argentinian observing site and preparation for first light.
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D’Alessandro, G., Battistelli, E.S., de Bernardis, P. et al. QUBIC Experiment Toward the First Light. J Low Temp Phys 209, 839–848 (2022). https://doi.org/10.1007/s10909-022-02775-z
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DOI: https://doi.org/10.1007/s10909-022-02775-z