Signature of Collective Plasma Effects in Beam-Driven QED Cascades
arXiv:2001.02590 · doi:10.1103/PhysRevLett.127.095001
Abstract
QED cascades play an important role in extreme astrophysical environments like magnetars. They can also be produced by passing a relativistic electron beam through an intense laser field. Signatures of collective pair plasma effects in these QED cascades are shown to appear, in exquisite detail, through plasma-induced frequency upshifts in the laser spectrum. Remarkably, these signatures can be detected even in small plasma volumes moving at relativistic speeds. Strong-field quantum and collective pair plasma effects can thus be explored with existing technology, provided that ultra-dense electron beams are colocated with multi-PW lasers.
7 pages, 3 figures
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- Collective plasma effects of electron-positron pairs in beam-driven QED cascades
- Deciphering in situ electron dynamics of ultrarelativistic plasma via polarization pattern of emitted gamma photons
- Particle Deceleration for Collective QED Signatures
- Ring momentum distributions as a general feature of Vlasov dynamics in the synchrotron dominated regime
- Pair Production in Circularly Polarized Waves
- Creating pair plasmas with observable collective effects
- MP3 White Paper 2021 -- Research Opportunities Enabled by Co-locating Multi-Petawatt Lasers with Dense Ultra-Relativistic Electron Beams
- Signatures for strong-field QED in the quantum limit of beamstrahlung
- Radiative cooling induced coherent maser emission in relativistic plasmas
- Anomalous pinch in electron-electron beam collision