Vacuum instability due to the creation of neutral Fermion with anomalous magnetic moment by magnetic-field inhomogeneities
arXiv:2109.06053 · doi:10.1007/JHEP12(2021)046
Abstract
We study neutral Fermions pair creation with anomalous magnetic moment from the vacuum by time-independent magnetic-field inhomogeneity as an external background. We show that the problem is technically reduced to the problem of charged-particle creation by an electric step, for which the nonperturbative formulation of strong-field QED is used. We consider a magnetic step given by an analytic function and whose inhomogeneity may vary from a "gradual" to a "sharp" field configuration. We obtain corresponding exact solutions of the Dirac-Pauli equation with this field and calculate pertinent quantities characterizing vacuum instability, such as the differential mean number and flux density of pairs created from the vacuum, vacuum fluxes of energy and magnetic moment. We show that the vacuum flux in one direction is formed from fluxes of particles and antiparticles of equal intensity and with the same magnetic moments parallel to the external field. Backreaction to the vacuum fluxes leads to a smoothing of the magnetic-field inhomogeneity. We also estimate critical magnetic field intensities, near which the phenomenon could be observed.
arXiv comment30 pages, 1 figure
References in corpus (52)
- Extremely high-intensity laser interactions with fundamental quantum systems
- Evidence for strong extragalactic magnetic fields from Fermi observations of TeV blazars
- The strongest cosmic magnets: Soft Gamma-ray Repeaters and Anomalous X-ray Pulsars
- Matter in Strong Magnetic Fields
- Electron-positron pairs in physics and astrophysics: from heavy nuclei to black holes
- The Magnetorotational Instability in Core Collapse Supernova Explosions
- Sterile neutrinos: the dark side of the light fermions
- The intergalactic magnetic field constrained by Fermi/LAT observations of the TeV blazar 1ES 0229+200
- Equation of State of a Dense and Magnetized Fermion System
- Heisenberg-Euler Effective Lagrangians : Basics and Extensions
- Dark-Matter Electric and Magnetic Dipole Moments
- Time Delay of Cascade Radiation for TeV Blazars and the Measurement of the Intergalactic Magnetic Field
- New Strong-Field QED Effects at ELI: Nonperturbative Vacuum Pair Production
- Schwinger mechanism revisited
- How Magnetic is the Dirac Neutrino?
- Equation of state for the MCFL phase and its implications for compact star models
- Neutrino electromagnetic properties
- Dynamical Chiral Symmetry Breaking on a Brane in Reduced QED
- Electromagnetic neutrinos in laboratory experiments and astrophysics
- Magnetic monopoles revisited: Models and searches at colliders and in the Cosmos
- Particle-physics constraints from the globular cluster M5: Neutrino Dipole Moments
- The Helium-Core Mass at the Helium Flash in Low-Mass Red Giant Stars: Observations and Theory
- Quantization of charged fields in the presence of critical potential steps
- Towards Schwinger production of magnetic monopoles in heavy-ion collisions
- Critical Schwinger pair production
- Implications of a Primordial Magnetic Field for Magnetic Monopoles, Axions, and Dirac Neutrinos
- Schwinger pair production of magnetic monopoles: momentum distribution for heavy-ion collisions
- Neutrino self-energy and pair creation in neutron stars
- Exactly solvable cases in QED with t-electric potential steps
- Observing Dark Matter via the Gyromagnetic Faraday Effect
- Fermion production in a magnetic field in a de Sitter Universe
- Coherent Neutrino Interactions in a Dense Medium
- Probing the quantum vacuum with ultra intense laser pulses
- Scattering and pair creation by a constant electric field between two capacitor plates
- Large Neutrino Magnetic Dipole Moments in MSSM Extensions
- Monopole-Antimonopole Pair Production in Primordial Magnetic Fields
- Exact Pair Production Rate for a Smooth Potential Step
- Pair creation of neutral particles in a vacuum by external electromagnetic fields in 2+1 dimensions
- Particle scattering and vacuum instability by exponential steps
- Creation of neutral fermions with anomalous magnetic moments from a vacuum by inhomogeneous magnetic field
- Neutrino production in matter with time-dependent density or velocity
- Effective Potential for Uniform Magnetic Fields through Pauli Interaction
- Regularization, renormalization and consistency conditions in QED with x-electric potential steps
- Production of Neutral Fermion in Linear Magnetic Field through Pauli Interaction
- Vacuum instability in a constant inhomogeneous electric field. A new example of exact nonperturbative calculations
- Production of light pseudoscalars in external electromagnetic fields by the Schwinger mechanism
- Pair production of light pseudoscalar particles in strong inhomogeneous fields by the Schwinger mechanism
- Monopole-antimonopole pair production by magnetic fields
- Perturbative neutrino pair creation by an external source
- Unruh effect for neutrinos interacting with accelerated matter
- Fermion Production in Strong Magnetic Field and its Astrophysical Implications
- Total probability and number of particles for fermion production in external electric and magnetic fields in de Sitter universe
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