Chiral Anomalous Dispersion
arXiv:1712.03956 · doi:10.1007/JHEP02(2018)099
Abstract
The linearized Einstein equation describing graviton propagation through a chiral medium appears to be helicity dependent. We analyze features of the corresponding spectrum in a collision-less regime above a flat background. In the long wave-length limit, circularly polarized metric perturbations travel with a helicity dependent group velocity that can turn negative giving rise to a new type of an anomalous dispersion. We further show that this chiral anomalous dispersion is a general feature of polarized modes propagating through chiral plasmas extending our result to the electromagnetic sector.
arXiv comment13 pages;
References in corpus (31)
- The Chiral Magnetic Effect
- Observation of the chiral magnetic effect in ZrTe5
- Chiral Magnetic and Vortical Effects in High-Energy Nuclear Collisions --- A Status Report
- Gravitational Anomaly and Transport
- Primordial Magnetic Fields, Right Electrons, and the Abelian Anomaly
- Anomalous Axion Interactions and Topological Currents in Dense Matter
- Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity
- Kinetic theory with Berry curvature from quantum field theories
- Damping of Tensor Modes in Cosmology
- Thermodynamics, gravitational anomalies and cones
- Chiral Plasma Instabilities
- Chiral transport of neutrinos in supernovae: Neutrino-induced fluid helicity and helical plasma instability
- Cosmological implications of a Relic Neutrino Asymmetry
- Electromagnetic field and the chiral magnetic effect in the quark-gluon plasma
- Consistent Chiral Kinetic Theory in Weyl Materials: Chiral Magnetic Plasmons
- The Small Observed Baryon Asymmetry from a Large Lepton Asymmetry
- Naturally Large Cosmological Neutrino Asymmetries in the MSSM
- Chiral Gravity Waves and Leptogenesis in Inflationary Models with non-Abelian Gauge Fields
- General treatment of quantum and classical spinning particles in external fields
- Damping of gravitational waves by matter
- MagnetoHydrodynamics with chiral anomaly: phases of collective excitations and instabilities
- Numerical study of chiral plasma instability within the classical statistical field theory approach
- Chiral Vortical Effect for Bosons
- Chiral and Gravitational Anomalies on Fermi Surfaces
- Photonic chiral vortical effect
- Chiral magnetic plasmons in anomalous relativistic matter
- Energy Conservation and the Chiral Magnetic Effect
- Anomalous Transport and Generalized Axial Charge
- Parity violating gravitational response and anomalous constitutive relations
- Anomalous dispersion and negative group velocity in a coherence-free cold atomic medium
- Notes on conservation laws in chiral hydrodynamics