Direct searches for a cosmological stochastic gravitational wave background
LIGO has completed a series of observations searching for evidence of a stochastic gravitational wave background. There has been no detection to date. However the sensitivity of the observations is approaching the Big Bang nucleosynthesis bound. Future observations will provide information that bounds a number of early Universe models of stochastic gravitational waves.
© 2005 American Institute of Physics. Issue Date: 2 December 2005. The author gratefully acknowledges his colleagues in the LIGO Scientific Collaboration whose work on searches for a stochastic gravitational wave background made this report possible. In addition he acknowledges the generous support of the United States National Science Foundation for the construction and operation of the LIGO Laboratory. This publication has been assigned LIGO Document Control Number LIGO-P050035-03.
Published - LAZaipcp05.pdf