Is Cosmic Parity Violation Responsible for the Anomalies in the WMAP Data?
arXiv:hep-th/0601034 · doi:10.1016/j.physletb.2007.12.010
Abstract
This research demonstrates that parity violation in general relativity can simultaneously explain the observed loss in power and alignment at a preferred axis ('Axis of Evil')in the low multipole moments of the WMAP data. This observational possibility also provides an experimental window for an inflationary leptogenesis mechanism arising from large-scale parity violation. A velocity dependent potential is induced from gravitational backreaction, which modifies the primordial scalar angular power spectrum of density perturbations in the CMB. This modification suppresses power of odd parity multipoles on large scales which can be associated with the scale of a massive right-handed neutrino.
5 pages, included new references, expanded on some calculations
References in corpus (5)
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Cited by in corpus (35)
- Chern-Simons Modified General Relativity
- The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
- Extreme- and Intermediate-Mass Ratio Inspirals in Dynamical Chern-Simons Modified Gravity
- Detection of a Dipole in the Handedness of Spiral Galaxies with Redshifts z ~ 0.04
- Probing Parity-Violation with the Four-Point Correlation Function of BOSS Galaxies
- Parity Violation in Graviton Non-gaussianity
- A gravitational-wave probe of effective quantum gravity
- Peccei--Quinn mechanism in gravity and the nature of the Barbero--Immirzi parameter
- CMB Temperature Anisotropy from Broken Spatial Isotropy due to an Homogeneous Cosmological Magnetic Field
- Parity violation of primordial magnetic fields in the CMB bispectrum
- The Cosmology of Interacting Spin-2 Fields
- Primordial backgrounds of relic gravitons
- Non-isotropy in the CMB power spectrum in single field inflation
- Colliding Ghosts: Constraining Inflation with the Parity-Odd Galaxy Four-Point Function
- Testing Lorentz Invariance Violation with WMAP Five Year Data
- Non-detection of a statistically anisotropic power spectrum in large-scale structure
- Constraining Parity Violation in Gravity with Measurements of Neutron-Star Moments of Inertia
- Chern-Simons Modified Gravity as a Torsion Theory and its Interaction with Fermions
- Breaking discrete symmetries in the effective field theory of inflation
- Quasinormal modes of Schwarzschild black holes in projective invariant Chern-Simons modified gravity
- Dirichlet boundary value problem for Chern-Simons modified gravity
- The Gödel solution in the modified gravity
- Landau damping for gravitational waves in parity-violating theories
- Primordial Magnetic Helicity Constraints from WMAP Nine-Year Data
- Torsional birefringence in metric-affine Chern-Simons gravity: gravitational waves in late-time cosmology
- Scale-invariant helical magnetic field evolution and the duration of inflation
- CMB statistics in noncommutative inflation
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- Slow-rotating black holes with potential in dynamical Chern-Simons modified gravitational theory
- Parity violation in Poincaré gauge gravity
- The Godel metric in the Chern-Simons modified gravity
- Spherical Symmetric Gravitational Collapse in Chern-Simon Modified Gravity
- Signatures of asymmetry: Gravitational wave memory and the parity violation
- Revisiting Flat Rotation Curves in Chern-Simons Modified Gravity
- Slow Kerr-NUT black hole solution in dynamical Chern-Simons modified gravity