Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-01-10
Prog.Theor.Phys.97:243-262,1997
Astronomy and Astrophysics
Astrophysics
24 pages ptp-tex file, 2 postscript figures. Progress of Theoretical Physics accepted. The ptp-tex style file is available at
Scientific paper
10.1143/PTP.97.243
We give the initial spectrum of quantized gravitational waves in the context of the one-bubble open inflationary universe scenario. In determining the quantum state after the bubble nucleation we adopt the prescription to require the analyticity of positive frequency functions in half of the Euclidean extension of the background O(3,1)-symmetric spacetime. We find the spectrum is well behaved at the infrared limit and there appears no supercurvature mode. In the thin wall approximation, the explicit form of the spectrum of gravitational wave perturbations is calculated.
Sasaki Misao
Tanaka Takahiro
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