Prospects for direct detection of inflationary gravitational waves by next generation interferometric detectors
- Institute for Cosmic Ray Research, University of Tokyo, Chiba 277-8582 (Japan)
- Department of Physics, College of Humanities and Sciences, Nihon University, Tokyo 156-8550 (Japan)
- Department of Physics and KMI, Nagoya University, Chikusa, Nagoya 464-8602 (Japan)
We study the potential impact of detecting the inflationary gravitational wave background by the future space-based gravitational wave detectors, such as DECIGO and BBO. The signal-to-noise ratio of each experiment is calculated for chaotic/natural/hybrid inflation models by using the precise predictions of the gravitational wave spectrum based on numerical calculations. We investigate the dependence of each inflation model on the reheating temperature which influences the amplitude and shape of the spectrum, and find that the gravitational waves could be detected for chaotic/natural inflation models with high reheating temperature. From the detection of the gravitational waves, a lower bound on the reheating temperature could be obtained. The implications of this lower bound on the reheating temperature for particle physics are also discussed.
- OSTI ID:
- 21504964
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevD.83.043514; (c) 2011 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COSMOLOGY AND ASTRONOMY
AMPLITUDES
CHAOS THEORY
COMPUTERIZED SIMULATION
FORECASTING
GRAVITATIONAL WAVE DETECTORS
GRAVITATIONAL WAVES
INFLATIONARY UNIVERSE
SIGNAL-TO-NOISE RATIO
SPACE
SPECTRA
COSMOLOGICAL MODELS
DIMENSIONLESS NUMBERS
MATHEMATICAL MODELS
MATHEMATICS
MEASURING INSTRUMENTS
RADIATION DETECTORS
SIMULATION