QUBIC : The Q & U Bolometric Interferometer for Cosmology

QUBIC Colllaboration.

Serie: Trabajos publicados del IAR ; no. 1535

Resumen: The Q & U Bolometric Interferometer for Cosmology, QUBIC, is aninnovative experiment designed to measure the polarization of the cosmicmicrowave background and in particular the signature left therein by theinflationary expansion of the Universe. The expected signal is extremelyfaint; thus, extreme sensitivity and systematic control are necessary inorder to attempt this measurement. QUBIC addresses these requirementsusing an innovative approach combining the sensitivity of transition-edge sensor cryogenic bolometers, with the deep control of systematicscharacteristic of interferometers. This makes QUBIC unique with respectto others' classical imagers experiments devoted to the CMBpolarization. In this contribution, we report a description of the QUBICinstrument including recent achievements and the demonstration of thebolometric interferometry performed in laboratory. QUBIC will bedeployed at the observation site in Alto Chorrillos, in Argentina, atthe end of 2019.