Title: Probing the early universe with inflationary gravitational waves
by Latham Boyle (CITA, Toronto)

Abstract: Inflationary gravitational waves carry information about the
physical conditions both during and after inflation.  I will explain how
this information is encoded in the gravitational-wave spectrum, and
discuss the degree to which it might be disentangled and extracted
experimentally. In particular, I will examine how one can probe the
"primordial dark age" between the end of inflation and the electroweak
phase transition by measuring the gravitational-wave spectrum in two
different ways: (1) with CMB polarization experiments on large scales and
(2) with laser-interferometer experiments on small scales.