Quasiclassical approach to synergic synchrotron-Cherenkov radiation in polarized vacuum

Abstract

The photon emission by an ultrarelativistic charged particle in extremely strong magnetic field is analyzed, with vacuum polarization and photon recoil taken into account. The vacuum polarization is treated phenomenologically via refractive index. The photon emission occurs in the synergic (cooperative) synchrotron-Cherenkov process [J. Schwinger, W. Tsai and T. Erber, Annals of Physics, 96 303 (1976)] which is similar to the synchrotron emission rather than to the Cherenkov one. For electrons, the effect of the vacuum polarization on the emission spectrum is not evident even beyond the probable onset of non-perturbative quantum electrodynamics (QED). However, the effect of the vacuum polarization on the emission spectrum can be observable for muons already at $\gamma B/B_S\approx 30$, with $\gamma$ the muon Lorentz factor, $B$ the magnetic field strength and $B_S$ the critical QED field. Nevertheless, vacuum polarization leads to only 10% enhancement of the maximum of the radiation spectrum.

arXiv comment21 pages, 6 figures

References in corpus (18)

• On the Observation of Vacuum Birefringence
• On the Prospect of Studying Nonperturbative QED with Beam-Beam Collisions
• A matterless double slit
• Improved local-constant-field approximation for strong-field QED codes
• Experimental Evidence of Quantum Radiation Reaction in Aligned Crystals
• High-Energy Vacuum Birefringence and Dichroism in an Ultrastrong Laser Field
• Conjecture of perturbative QED breakdown at $\alpha {\chi }^{2/3}\gtrsim 1$
• Double-slit vacuum polarisation effects in ultra-intense laser fields
• Concept of Formation Length in Radiation Theory
• Reaching supercritical field strengths with intense lasers
• Probing non-perturbative QED with electron-laser collisions
• Cherenkov radiation from the quantum vacuum
• Prospects for studying vacuum polarisation using dipole and synchrotron radiation
• Testing strong-field QED close to the fully non-perturbative regime using aligned crystals
• Nonlinear Compton scattering of an ultra-intense laser pulse in a plasma
• Cherenkov radiation and pair production by particles traversing laser beams
• Synergic Cherenkov-Compton Radiation
• Quantum theory of transition radiation and transition pair creation

Cited by in corpus (4)

• Advances in QED with intense background fields
• Čerenkov radiation in vacuum from a superluminal grating
• Reaching the high laser intensity by a radiating electron
• High-order corrections to the radiation-free dynamics of an electron in the strongly radiation-dominated regime