Space laser interferometers can determine the thermal history of the early Universe
Abstract
It is shown that space-based gravitational wave detectors such as DECIGO and/or Big Bang Observer (BBO) will provide us with invaluable information on the cosmic thermal history after inflation and they will be able to determine the reheat temperature TR provided that it lies in the range preferred by the cosmological gravitino problem, TR 105-9 GeV. Therefore it is strongly desired that they will be put into practice as soon as possible.
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