• Corpus ID: 119202305

Generation of a neutral, high-density electron-positron plasma in the laboratory

@article{Sarri2013GenerationOA,
  title={Generation of a neutral, high-density electron-positron plasma in the laboratory},
  author={Gianluca Sarri and Kristjan P{\~o}der and Jason M. Cole and W. Schumaker and Antonino Di Piazza and Brian Reville and D. Doria and Brendan Dromey and L. A. Gizzi and Anne M. Green and G. M. Grittani and Satyananda Kar and Christoph H. Keitel and Karl Krushelnick and S. Kushel and Stuart P. D. Mangles and Z. Najmudin and A. G. R. Thomas and M. Vargas and Matthew Zepf},
  journal={arXiv: Plasma Physics},
  year={2013}
}
We report on the laser-driven generation of purely neutral, relativistic electron-positron pair plasmas. The overall charge neutrality, high average Lorentz factor ($\gamma_{e/p} \approx 15$), small divergence ($\theta_{e/p} \approx 10 - 20$ mrad), and high density ($n_{e/p}\simeq 10^{15}$cm$^{-3}$) of these plasmas open the pathway for the experimental study of the dynamics of this exotic state of matter, in regimes that are of relevance to electron-positron astrophysical plasmas. 

Figures from this paper

Generation of high-energy electron-positron beams in the collision of a laser-accelerated electron beam and a multi-petawatt laser

Generation of antimatter via the multiphoton Breit-Wheeler process in an all-optical scheme will be made possible on forthcoming high-power laser facilities through the collision of

Generation of high-energy electron-positron pairs in the collision of a laser-accelerated electron beam with a multipetawatt laser

Generation of electron-positron pairs via the multiphoton Breit-Wheeler process in an all-optical scheme will be made possible on forthcoming high-power laser facilities through the collision of

High-energy radiation and pair production by Coulomb processes in particle-in-cell simulations

We present a Monte Carlo implementation of the Bremsstrahlung, Bethe-Heitler and Coulomb Trident processes into the particle-in-cell (PIC) simulation framework. In order to address photon and

Compton-driven beam formation and magnetization via plasma microinstabilities

Compton scattering of gamma rays propagating in a pair plasma can drive the formation of a relativistic electron positron beam. This process is scrutinized theoretically and numerically via

Theory of the formation of a collisionless Weibel shock: pair vs. electron/proton plasmas

Collisionless shocks are shocks in which the mean-free path is much larger than the shock front. They are ubiquitous in astrophysics and the object of much current attention as they are known to be

Spatial-temporal evolution of the current filamentation instability

The spatial-temporal evolution of the purely transverse current filamentation instability is analyzed by deriving a single partial differential equation for the instability and obtaining the

The microphysics of collisionless shock waves

TLDR
This review adresses the physics of shock formation, shock dynamics and particle acceleration based on a close examination of available multi-wavelength or in situ observations, analytical and numerical developments and focuses on the different instabilities triggered during the shock formation and in association with particle acceleration processes.

References

SHOWING 1-10 OF 42 REFERENCES

Plans for the creation and studies of electron–positron plasmas in a stellarator

Electron–positron plasmas are unique in their behavior due to the mass symmetry. Strongly magnetized electron–positron, or pair, plasmas are present in a number of astrophysical settings, such as

Creation and uses of positron plasmas

Advances in positron trapping techniques have led to room‐temperature plasmas of 107 positrons with lifetimes of 103 s. Improvements in plasma manipulation and diagnostic methods make possible a

Table-top laser-based source of femtosecond, collimated, ultrarelativistic positron beams.

TLDR
The generation of ultrarelativistic positron beams with short duration, small divergence, and high density from a fully optical setup is reported, and the detected positron beam propagates with high-density electron beam and γ rays, thus closely resembling the structure of an astrophysical leptonic jet.

Laser-driven generation of collimated ultra-relativistic positron beams

We report on recent experimental results concerning the generation of collimated (divergence of the order of a few mrad) ultra-relativistic positron beams using a fully optical system. The positron

Electron–positron jets associated with the quasar 3C279

A long-standing question in extragalactic astrophysics is the composition of the relativistic jets of plasma that stream from the nuclei of quasars and active galaxies—do they consist of a ‘normal’

Relativistic quasimonoenergetic positron jets from intense laser-solid interactions.

Detailed angle and energy resolved measurements of positrons ejected from the back of a gold target that was irradiated with an intense picosecond duration laser pulse reveal that the positrons are

PLASMA EFFECTS ON FAST PAIR BEAMS IN COSMIC VOIDS

The interaction of TeV gamma rays from distant blazars with the extragalactic background light produces relativistic electron–positron pair beams by the photon– photon annihilation process. The

Self-guided laser wakefield acceleration beyond 1 GeV using ionization-induced injection.

TLDR
Computer simulations confirm that it is the K-shell electrons of oxygen that are ionized and injected into the wake and accelerated to beyond 1 GeV energy.

Extremely high-intensity laser interactions with fundamental quantum systems

The field of laser-matter interaction traditionally deals with the response of atoms, molecules, and plasmas to an external light wave. However, the recent sustained technological progress is opening

Interpenetrating Plasma Shells: Near-Equipartition Magnetic Field Generation and Nonthermal Particle Acceleration

We present the first three-dimensional fully kinetic electromagnetic relativistic "particle-in-cell" simulations of the collision of two interpenetrating plasma shells. The highly accurate