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DTSTART:20240101T000000
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DTSTART;TZID=UTC:20241022T160000
DTEND;TZID=UTC:20241022T170000
DTSTAMP:20260414T172946
CREATED:20241017T213555Z
LAST-MODIFIED:20241017T213555Z
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SUMMARY:Speaker: Julien Carron (UNIGE) - Title: Delensing the Cosmic Microwave Background
DESCRIPTION:Research Progress Meeting \nDate: October 22\, 2024 \nTime: 4:00- 5:00 pm  \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Julien Carron (UNIGE) \nTitle: Delensing the Cosmic Microwave Background \nAbstract: Gravitational lensing of the Cosmic Microwave Background is a very valuable cosmological signal\, detected at very high significance by several experiments.  At the same time\, it has also become an hindrance to some important science goals of CMB experiments\,  most notably for best constraints on a primordial background of gravitational waves. After reviewing current lensing estimation techniques and recent results\, I’ll discuss how removal of the lensing signal (`delensing’) typically helps measuring small parameters that affects the CMB polarization. Very sensitive experiments must rely on novel more powerful algorithms to optimally extract or remove the lensing signal: I will present the approach developed in our group in Geneva\, together with its forecast performance for upcoming experiments\, notably CMB-S4. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-julien-carron-unige-title-delensing-the-cosmic-microwave-background/
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