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

## TL;DR

QUBIC is a novel polarized microwave sky observatory combining bolometric sensitivity with interferometric systematic control, featuring self-calibration and spectral imaging to improve primordial universe observations.

## Contribution

It introduces a new experimental approach that integrates bolometric detectors with interferometric techniques, including self-calibration and spectral imaging capabilities.

## Key findings

- Technological demonstrator tested and deployed in 2019
- Final instrument expected in 2020
- Enhanced systematic control and spectral separation capabilities

## 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.