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Gupta-Bleuler quantization for minimally coupled scalar fields in de Sitter space
We present a fully covariant quantization of the minimally coupled massless field on de Sitter space, thanks to a new representation of the canonical commutation relations. We thus obtain a formalismExpand
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Dirac fields and thermal effects in the de Sitter universe
We present a study of Dirac quantum fields in a four-dimensional de Sitter spacetime. The theory is based on the requirement of precise analyticity properties of the waves and the correlationExpand
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“Massive” spin-2 field in de Sitter space
In this paper we present a covariant quantization of the “massive” spin-2 field on de Sitter (dS) space. By “massive” we mean a field which carries a specific principal series representation of theExpand
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Thermodynamics of nonlinearly charged black holes in the Brans–Dicke modified gravity theory
In this work, the charged black hole solution to the Brans–Dicke gravity theory in the presence of the nonlinear electrodynamics has been investigated. To simplify the field equations, a conformalExpand
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Spin 1/2 Field Theory in the de Sitter space-time
A covariant quantization of the free spinor fields (s=1/2) in 4-dimensional de Sitter (dS) space-time based on analyticity in the complexified pseudo-Riemanian manifold is presented. We define theExpand
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Gravitational Wave Detection by Bounded Cold Electronic Plasma in a Long Pipe
We intend to propose an experimental sketch to detect gravitational waves (GW) directly, using an cold electronic plasma in a long pipe. By considering an cold electronic plasma in a long pipe, theExpand
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ABELIAN GAUGE THEORY IN DE SITTER SPACE
Quantization of spinor and vector free fields in four-dimensional de Sitter spacetime, in the ambient space notation, has been studied in the previous works. Various two-point functions for the aboveExpand
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Conformally invariant wave equations and massless fields in de Sitter spacetime
Conformally invariant wave equations in de Sitter space, for scalar and vector fields, are introduced in the present paper. Solutions of their wave equations and the related two-point functions, inExpand
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N=1 de Sitter supersymmetry algebra
Abstract Recalling the universal covering group of de Sitter universe, the transformation properties of the spinor fields ψ ( x ) and ψ ¯ ( x ) , in the ambient space notation, are presented in thisExpand
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Spectrum of Scalar Curvature Perturbations in Krein Space Quantization
The main goal of this paper is to derive the primordial power spectrum for the scalar perturbations generated as a result of quantum fluctuations during an inflationary period by an alternativeExpand
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