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Revisiting the spectrum of a scalar field in an anisotropic universe

Kim, Hyeong-Chan et al.
arXiv (All) · Papers
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cosmology-and-nongalactic-astrophysicsgeneral-relativity-and-quantum-cosmologyhigh-energy-physics-theory
We revisit the issue on signatures of pre-inflationary background anisotropy by considering the quantization of a massless and minimally coupled scalar field in an axially symmetric Kasner background, mimicking cosmological perturbations. We show that the power spectrum of the scalar field fluctuati
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