Matter-Antimatter Asymmetry Generated by Loop Quantum Gravity

Abstract

We show that Loop Quantum Gravity provides new mechanisms through which observed matter-antimatter asymmetry in the Universe can naturally arise at temperatures less than GUT scale. This is enabled through the introduction of a new length scale $\mathcal{L}$, much greater than Planck length ($l_P$), to obtain semi-classical weave states in the theory. This scale which depends on the momentum of the particle modifies the dispersion relation for different helicities of fermions and leads to lepton asymmetry.

To appear in Phys. Lett. B. Minor changes in presentation. References added

References in corpus (41)

• Lorentz-Violating Extension of the Standard Model
• CPT Violation and the Standard Model
• Potential Sensitivity of Gamma-Ray Burster Observations to Wave Dispersion in Vacuo
• Relativity in space-times with short-distance structure governed by an observer-independent (Planckian) length scale
• Nonstandard optics from quantum spacetime
• The origin of the matter-antimatter asymmetry
• Neutrinos in cosmology
• Big Bang nucleosynthesis and physics beyond the Standard Model
• Stability, Causality, and Lorentz and CPT Violation
• Quantum gravity corrections to neutrino propagation
• Introduction to Modern Canonical Quantum General Relativity
• The IR/UV Connection in the Non-Commutative Gauge Theories
• Weaving a classical geometry with quantum threads
• Loop quantum gravity and light propagation
• Threshold effects and Planck scale Lorentz violation: combined constraints from high energy astrophysics
• Astrophysical Probes of the Constancy of the Velocity of Light
• New Tests of Lorentz Invariance Following from Observations of the Highest Energy Cosmic Gamma Rays
• CPT Violation and Baryogenesis
• TeV Astrophysics Constraints on Planck Scale Lorentz Violation
• Astrophysical limits on quantum gravity motivated birefringence
• Coherent States for Canonical Quantum General Relativity and the Infinite Tensor Product Extension
• New Observational Bounds to Quantum Gravity Signals
• A Microscopic Recoil Model for Light-Cone Fluctuations in Quantum Gravity
• Proposed astrophysical test of Lorentz invariance
• Quantum gravity and spin 1/2 particles effective dynamics
• Observational Limits on Quantum Geometry Effects
• Extragalactic Gamma-ray Absorption and the Intrinsic Spectrum of Mkn 501 During the 1997 Flare
• Possible astrophysical probes of quantum gravity
• Gravitational-Recoil Effects on Fermion Propagation in Space-Time Foam
• Space-Time Foam Effects on Particle Interactions and the GZK Cutoff
• Loop Quantum Gravity Corrections and Cosmic Ray Decays
• Reheating Temperature and Inflaton Mass Bounds from Thermalization After Inflation
• A proposal for analyzing the classical limit of kinematic loop gravity
• Primordial space-time foam as an origin of cosmological matter-antimatter asymmetry
• Quantum gravity corrections to particle interactions
• Neutrino Oscillations Induced by Gravitational Recoil Effects
• Cerenkov's Effect and Neutrino Oscillations in Loop Quantum Gravity
• Classicality, Matter-Antimatter Asymmetry, and Quantum-Gravity Deformed Uncertainty Relations
• Impact of Low-Energy Constraints on Lorentz Violation
• Evidence for Majorana Neutrinos: Dawn of a new era in spacetime structure
• Baryogenesis from primordial tensor perturbations

Cited by in corpus (12)

• On Loop Quantum Gravity Phenomenology and the Issue of Lorentz Invariance
• Neutrino coupling to cosmological background: A review on gravitational Baryo/Leptogenesis
• CPT Violation and Decoherence in Quantum Gravity
• Synchrotron Radiation in Lorentz-violating Electrodynamics: the Myers-Pospelov model
• Synchrotron radiation in Myers-Pospelov effective electrodynamics
• Charge conjugation and Lense-Thirring Effect: A new Asymmetry
• On alternative approaches to Lorentz violation in loop quantum gravity inspired models
• Baryon asymmetry in the Universe resulting from Lorentz violation
• Bibliography of Publications related to Classical Self-dual variables and Loop Quantum Gravity
• Lorentz violating electrodynamics
• Canonical Formulation for a Non-relativistic Spinning Particle Coupled to Gravity
• Phenomenological description of quantum gravity inspired modified classical electrodynamics