A small non-vanishing cosmological constant from the Krein-Gupta-Bleuler vacuum
arXiv:1808.02728 · doi:10.1016/j.physletb.2018.09.017
Abstract
We point out a potential relevance between the Krein-Gupta-Bleuler (KGB) vacuum leading to a fully covariant quantum field theory for gravity in de Sitter (dS) spacetime and the observable smallness of the cosmological constant. This may provide a formulation of linear quantum gravity in a framework amenable to developing a more complete theory determining the value of the cosmological constant.
arXiv comment3 pages
References in corpus (19)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- The Cosmological Constant
- The Cosmic Triangle: Revealing the State of the Universe
- A Small Cosmological Constant from a Large Extra Dimension
- A cosmological constant from the QCD trace anomaly?
- Gupta-Bleuler quantization for minimally coupled scalar fields in de Sitter space
- Self-tuning vacuum variable and cosmological constant
- Gluonic vacuum, q-theory, and the cosmological constant
- Perturbative Quantum Gravity Comes of Age
- The Graviton Propagator in de Donder Gauge on de Sitter Background
- Emergent Gauge Bosons
- Gauging away Physics
- A cosmological constant from degenerate vacua
- Krein space quantization in curved and flat spacetimes
- A Nonlocal Approach to the Cosmological Constant Problem
- Covariant and infrared-free graviton two-point function in de Sitter spacetime
- Vacuum states for gravitons field in de Sitter space
- "Massless" spin-2 field in de Sitter space
Cited by in corpus (5)
- Revisiting the Cosmological Constant Problem within Quantum Cosmology
- Dark Energy From Dynamical Projective Connections
- Gupta-Bleuler quantization for linearized gravity in de Sitter spacetime
- `Hidden' symmetry of linearized gravity in de Sitter space
- Covariant Quantization of the Partially Massless Graviton Field in de Sitter Spacetime