QUBIC: Exploring the primordial Universe with the Q\&U Bolometric Interferometer

Abstract

In this paper we describe QUBIC, an experiment that will observe the polarized microwave sky with a novel approach, which combines the sensitivity of state-of-the art bolometric detectors with the systematic effects control typical of interferometers. QUBIC unique features are the so-called "self-calibration", a technique that allows us to clean the measured data from instrumental effects, and its spectral imaging power, i.e. the ability to separate the signal in various sub-bands within each frequency band. QUBIC will observe the sky in two main frequency bands: 150 GHz and 220 GHz. A technological demonstrator is currently under testing and will be deployed in Argentina during 2019, while the final instrument is expected to be installed during 2020.

arXiv commentProceedings of the 2018 ICNFP conference, Crete. Published by Universe arXiv admin note: text overlap with arXiv:1801.03730

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• CMB imprints of high scale non-thermal leptogenesis
• Foreground removal with ILC methods for AliCPT-1
• Controlling systematics in ground-based CMB surveys with partial boresight rotation
• Total power horn-coupled 150 GHz LEKID array for space applications
• Enhancing CMB map reconstruction and power spectrum estimation with convolutional neural networks
• CMB polarization analysis on circular scans
• A Polarization Modulator Unit for the Mid- and High-Frequency Telescopes of the LiteBIRD mission
• Post-inflationary production of particle Dark Matter: Hilltop and Coleman-Weinberg inflation
• Forecasts of effects of beam systematics and deprojection on the third-generation ground-based cosmic microwave background experiment
• Observing the polarized cosmic microwave background from the Earth: scanning strategy and polarimeters test for the LSPE/STRIP instrument
• QUBIC VII: The feedhorn-switch system of the technological demonstrator