The Search for a Stochastic Gravitational Wave Background

Detection of a stochastic background of gravitational waves of cosmological origin would provide a unique view of conditions in the very early universe. There are astrophysical observations that provide meaningful upper limits to such a background. Measurements using earth based gravitational wave detectors are now beginning to provide interesting upper limits as well. The techniques and status of searching for a gravitational wave background using the LIGO interferometers will be presented, and the prospects for ultimately detecting such a background will be discussed.