QUIET experiment for CMB polarization measurement, Dr. Akito Kusaka, Kavli Institute for Cosmological Physics (KICP)

Nov 19, 2010, 3:00 pm6:00 pm
Joseph Henry Room
Event Description
Cosmic microwave background (CMB) polarization is the ultimate probe of primordial gravity waves in the early universe, via the B-mode (or parity odd) signal on degree angular scales. A detection of such a signal would be strong evidence of the inflation scenario and represent indirect observation of a fundamentally new phenomenon near the grand unification energy scale. With its unique radiometer technology, QUIET is among the most competitive experiments aiming to detect such a signature in the CMB. QUIET started its observation with its 44GHz receiver in October 2008. After nine months of successful observation, we deployed the 95GHz receiver replacing the 44GHz one and the observation resumed in August 2009. In this talk, I will review its instrumentation, site, and observation strategy, as well as the current status of the analysis.