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 $T_R$ provided that it lies in the range preferred by the cosmological gravitino problem, $T_R\sim 10^{5-9}$ GeV. Therefore it is strongly desired that they will be put into practice as soon as possible.

5 pages

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• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Inflationary Cosmology
• Improved Calculation of the Primordial Gravitational Wave Spectrum in the Standard Model
• Gravitational Waves from the First Stars
• Lepton asymmetry in the primordial gravitational wave spectrum
• Effective Search Templates for a Primordial Stochastic Gravitational Wave Background

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