Quantum Linear Gravity in de Sitter Universe On Bunch-Davies vacuum state

Autor:	Takook, M. V., Rouhani, S.
Rok vydání:	2015
Předmět:	General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
Popis:	In de Sitter ambient space formalism, the linear gravity can be written in terms of a minimally coupled scalar field and a polarization tensor. In this formalism, the massless minimally coupled scalar field can be quantized on Bunch-Davies vacuum state, that preserves the de Sitter invariance, the analyticity and removes the infrared divergence. The de Sitter quantum linear gravity is then constructed on Bunch-Davies vacuum state, which is also covariant, analytic and free of any infrared divergences. We will conclude that the unique Bunch-Davies vacuum state can be used adequately to constructing the quantum field theory in de Sitter universe. Comment: 7 pages. further improvements added
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1502.04814 Zobrazit plný text záznamu View this record from Arxiv