Polarization of the Cosmic Gravitational Wave Background

Speaker: 
Robert Caldwell (Dartmouth)
Event Date and Time: 
Thu, 2018-09-20 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Douglas Scott
Intended Audience: 
Undergraduate

The Cosmic Gravitational Wave Background (CGB) is a
hypothesized relic radiation field that, if detected, would give us
clues to the earliest moments of the history of the Universe. In this
talk, accessible to students and non-experts, I will describe the
physical processes that can give rise to a CGB, novel features including
a net polarization of the gravitational waves (as distinct from the
polarization of cosmic microwave background photons), and methods of
detection. I will also discuss the ability of the proposed Laser
Interferometer Space Antenna, LISA, to detect the CGB.

 

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