Polarization Peregrinations: Using Cosmic Lampposts to Find Keys to Nature’s Laws

  • Speaker
  • Portrait photo of Brian KeatingBrian Keating, Ph.D.University of California, San Diego
Date


About Presidential Lectures

Presidential Lectures are a series of free public colloquia spotlighting groundbreaking research across four themes: neuroscience and autism science, physics, biology, and mathematics and computer science. These curated, high-level scientific talks feature leading scientists and mathematicians and are designed to foster discussion and drive discovery within the New York City research community. We invite those interested in these topics to join us for this weekly lecture series.

Researchers using data from the Planck satellite, a spacecraft measuring the cosmic microwave background (CMB), say they’ve recently observed a hint (at 99.2 percent confidence) of parity violation on cosmic scales. If confirmed, this result would have profound implications, not just for cosmology but for all of fundamental physics. In this lecture, Brian Keating will review the basis for the claimed hint of so-called ‘Chern-Simons’ (yes, that Simons!) cosmic birefringence. He will outline steps scientists are taking to definitively confirm (or falsify) this provocative claim using future CMB experiments like the Simons Array, the Simons Observatory, as well as optical polarization data from unique cosmic ‘lampposts’ (quasars and AGN) using small (0.5-meter class) telescopes.

Registration is required for this free event.

Further instructions and access to join the webinar will be sent to all registrants upon sign up.

About the Speaker

Portrait photo of Brian Keating

Keating is a cosmologist at the University of California, San Diego. He is an author of more than 200 scientific publications, two U.S. patents, and the best-selling memoir “Losing the Nobel Prize.” Keating received his B.S. from Case Western Reserve University in 1993 and his Ph.D. from Brown University in 2000. Later, he was a postdoctoral fellow at Stanford University and Caltech, and in 2007 he received the Presidential Early Career Award for Scientists and Engineers from President Bush for inventing the BICEP telescope. Keating was elected Fellow of the American Physical Society in 2016 and is the director of the Simons Observatory Project Office. He is a commercial pilot with multi-engine, instrument ratings and is an honorary lifetime member of the National Society of Black Physicists.

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