Power Spectrum in Krein Space Quantization

Details Power Spectrum in Krein Space Quantization Power Spectrum in Krein Space Quantization

2008-11-06

arxiv.org/abs/0811.0982v1

Int J Theor Phys 48(2009)755-762

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, appear in Int. J. Theor. Phys

Scientific paper

10.1007/s10773-008-9851-6

The power spectrum of scalar field and space-time metric perturbations produced in the process of inflation of universe, have been presented in this paper by an alternative approach to field quantization namely, Krein space quantization [1,2]. Auxiliary negative norm states, the modes of which do not interact with the physical world, have been utilized in this method. Presence of negative norm states play the role of an automatic renormalization device for the theory.

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