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X-WR-CALNAME:LBNL Physics Division Research Progress Meetings
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DTSTART;TZID=America/Los_Angeles:20170321T160000
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DTSTAMP:20260422T224353
CREATED:20170125T103235Z
LAST-MODIFIED:20170125T103235Z
UID:454-1490112000-1490115600@rpm.physics.lbl.gov
SUMMARY:Roger O’Brient (JPL) “The Search for Inflationary Gravitational Waves: Current Status of the BICEP Program and Next Generation Instrumentation.”
DESCRIPTION:Abstract:\nFor over a decade\, the BICEP collaboration has been deploying small aperture telescopes to the South Pole Station to map B-mode polarization in the Cosmic Microwave Background and\nsearch for evidence of primordial gravitational waves. If detected\, they would allow physicists\nto constrain physics at energy scales of ~10 16 GeV levels. To date\, this program places the\ntightest constrains on the tensor-scalar ratio of r<0.07 (95% confidence). We are at an\nimportant point in our program as we transition into “Stage-3” instruments with the BICEP-\narray\, which will search to a level of r>0.01. This rapid progress is fueled by the antenna-\ncoupled superconducting bolometers that we have developed at NASA’s Jet Propulsion\nLaboratory. In my talk\, I’ll summarize the science case for these experiments\, describe the\ninstruments themselves with a focus on the detectors\, discuss the recently collected data\, and\ncomment on the future of our program. In particular\, Thermal KIDs\, an emerging bolometer\ntechnology\, will be critical for this next phase. Finally\, I’ll comment on how LBL and DOE can\nand will play a future role in this exciting frontier of fundamental physics.
URL:https://rpm.physics.lbl.gov/event/reserved-41/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
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