Radiation reaction cooling as a source of anisotropic momentum distributions with inverted populations
arXiv:2212.12271 · doi:10.1103/PhysRevLett.130.165101
Abstract
Under the presence of strong electromagnetic fields and radiation reaction, plasmas develop anisotropic momentum distributions, characterized by a population inversion. This is a general property of collisionless plasmas when the radiation reaction force is taken into account. We study the case of a plasma in a strong magnetic field and demonstrate the development of ring momentum distributions. The timescales for ring formation are derived for this configuration. The analytical results for the ring properties and the timescales for ring formation are confirmed with particle-in-cell simulations. The resulting momentum distributions are kinetically unstable and are known to lead to coherent radiation emission in astrophysical plasmas and laboratory setups.
Accepted for publication in PRL. 8 pages, 4 figures
References in corpus (12)
- Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
- Prolific pair production with high-power lasers
- Charged particle motion and radiation in strong electromagnetic fields
- Radiation Reaction Effects on Radiation Pressure Acceleration
- Strong signatures of radiation reaction below the radiation dominated regime
- A magnetar-powered X-ray transient as the aftermath of a binary neutron-star merger
- Electrodynamics of pulsar magnetospheres
- Effective Critical Electric Field for Runaway-Electron Generation
- Coherent emission in pulsars, magnetars and Fast Radio Bursts: reconnection-driven free electron laser
- Is Cyclotron Maser Emission in Solar Flares Driven by a Horseshoe Distribution?
- Synchrotron Firehose Instability
- Particle Deceleration for Collective QED Signatures
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