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Kirit Karkare (U.Chicago) “Pushing the Limits of Cosmology with Next-Generation Millimeter-Wave Telescopes”

Name: Kirit Karkare (U.Chicago) “Pushing the Limits of Cosmology with Next-Generation Millimeter-Wave Telescopes”
Start: 2022-02-24T16:00:00+00:00
End: 2022-02-24T17:00:00+00:00
Location: Zoom Talk

February 24, 2022 @ 4:00 pm - 5:00 pm

ABSTRACT:

While the Lambda-CDM cosmological model is remarkably effective at describing the Universe and its evolution as a whole, foundational questions remain. Where did the primordial fluctuations come from and why were they so uniform? What is causing the present-day accelerated expansion? What is the mass of the neutrino? Maps of large-scale structure at different epochs can address these questions. I will present the latest results from the BICEP/Keck cosmic microwave background experiment, which is searching for B-mode polarization from an inflationary expansion at the earliest moments of time. I will focus on my work calibrating the instrument and controlling systematics, and how current experiments are informing the design of the future CMB-S4 experiment which will test large classes of physically-motivated inflation models. I will then discuss mm-wave line intensity mapping — a new cosmological probe for measuring large-scale structure well into the first billion years of the Universe — and how future instruments using on-chip spectrometers such as SPT-SLIM could transform our understanding of cosmological physics.

http://physics.lbl.gov/rpm/index.php/events/

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Details

Date:: February 24, 2022
Time:: 4:00 pm - 5:00 pm
Website:: https://lbnl.zoom.us/j/96224978136?pwd=eGZCa1g4Y1NHcEN1ZmxPRHNVU0RnZz09

Venue

Zoom Talk

50A-5132
Berkeley, ca 94720 + Google Map