Particle Creation in Global de Sitter Space: Bulk Space Consideration
arXiv:1408.2799 · doi:10.1142/S0218271815500522
Abstract
Recently in \cite{Anderson:2013zia, Anderson:2013ila}, it was shown that global de Sitter space is unstable even to the massive particle creation with no self-interactions. In this paper we study the instability by making use of the coordinate-independent plane wave in de Sitter space, within this formalism, we show that the previous results of instability of de Sitter space due to the particle creation can be generalized to higher-spin fields in a straightforward way. The so-called plane wave are defined globally in de Sitter space and de Sitter invariance is manifest since such modes are deduced from the group theoretical point of view by the means of the Casimir operators. In fact, we employ the underling symmetry of embedding space namely the dimensional flat space to write the field equations and the solutions can be obtained in terms of the plane wave in embedding space.
arXiv comment18 pages, ref.s added, published version
References in corpus (17)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Writing CFT correlation functions as AdS scattering amplitudes
- Conformal Vacua and Entropy in de Sitter Space
- Two-point Functions and Quantum Fields in de Sitter Universe
- On the Instability of Global de Sitter Space to Particle Creation
- Energy-Momentum Tensor of Particles Created in an Expanding Universe
- Quantum Vacuum Instability of 'Eternal' de Sitter Space
- Short distance and initial state effects in inflation: stress tensor and decoherence
- Infrared instability of the de Sitter space
- Massive Spin-2 Field in De Sitter Space
- "Massive" vector field in de Sitter space
- Conformally invariant wave-equations and massless fields in de Sitter spacetime
- de Sitter tachyons and related topics
- De Sitter Waves and the Zero Curvature Limit
- Quantum Field Theory in de Sitter Universe: Ambient Space Formalism
- Quasi-normal Modes in de Sitter Space: Plane Wave Method
- Krein Spaces in de Sitter Quantum Theories