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Vranić, Marija; Martins, Joana; Vieira, Jorge; Fonseca, Ricardo; Silva, L. O.

doi:10.1103/physrevlett.113.134801

Cited by 88 publications

(77 citation statements)

References 31 publications

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“…In our previous work [25] we have studied the radiation reaction for an electron beam in a laser field with the use of the Landau-Lifshitz equation [26] which has been recognised as the best candidate to describe classically the effect of radiation reaction on charged particle orbits [27][28][29][30][31][32]. In the Landau-Lifshitz equation framework, charged particles emit radiation continuously and the direct effect of this emission can be represented as a continuous drag force in the particle motion equation.…”

Section: Introductionmentioning

confidence: 99%

“…In the Landau-Lifshitz equation framework, charged particles emit radiation continuously and the direct effect of this emission can be represented as a continuous drag force in the particle motion equation. As shown in [25], when a GeV electron beam collides head-on with an intense laser (  -I 10 W cm 21 2 ), one of the key effects of classical radiation reaction is to reduce the width of the electron energy distribution function during the interaction [8,33]. The tendency of classical radiation reaction to shrink the electron energy distribution function has been studied also in fusion plasmas [34], and in ion acceleration with solid targets [35].…”

Section: Introductionmentioning

confidence: 99%

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Quantum radiation reaction in head-on laser-electron beam interaction

et al. 2016

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In this paper, we investigate the evolution of the energy spread and the divergence of electron beams while they interact with different laser pulses at intensities where quantum effects and radiation reaction are of relevance. The interaction is modelled with a QED-PIC code and the results are compared with those obtained using a standard PIC code with a classical radiation reaction module. In addition, an analytical model is presented that estimates the value of the final electron energy spread after the interaction with the laser has finished. While classical radiation reaction is a continuous process, in QED, radiation emission is stochastic. The two pictures reconcile in the limit when the emitted photons energy is small compared to the energy of the emitting electrons. The energy spread of the electron distribution function always tends to decrease with classical radiation reaction, whereas the stochastic QED emission can also enlarge it. These two tendencies compete in the QED-dominated regime. Our analysis, supported by the QED module, reveals an upper limit to the maximal attainable energy spread due to stochasticity that depends on laser intensity and the electron beam average energy. Beyond this limit, the energy spread decreases. These findings are verified for different laser pulse lengths ranging from short ∼ 30 fs pulses presently available to the long ∼ 150 fs pulses expected in the near-future

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantum radiation reaction in head-on laser-electron beam interaction

et al. 2016

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“…This circumstance led to several proposals of devoted experiments providing clear signatures of RF, e.g. in nonlinear Thomson scattering [13][14][15][16][17][18], Compton scattering [19], modification of Raman spectra [20], electron acceleration in vacuum [21][22][23], radiative trapping [24][25][26] or γray emission from plasma targets [27,28]. Most of these studies are based on single particle effects, and RF signatures are found in modifications of observables such as emission patterns and spectra when RF is included in the modeling.…”

Section: Introductionmentioning

confidence: 99%

Inverse Faraday effect driven by radiation friction

2016

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A collective, macroscopic signature to detect radiation friction in laser-plasma experiments is proposed. In the interaction of superintense circularly polarized laser pulses with high density targets, the effective dissipation due to radiative losses allows the absorption of electromagnetic angular momentum, which in turn leads to the generation of a quasistatic axial magnetic field. This peculiar 'inverse Faraday effect' is investigated by analytical modeling and three-dimensional simulations, showing that multi-gigagauss magnetic fields may be generated at laser intensities > -10 W cm 23 2 .

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“…The Landau-Lifshitz equation (1) has found widespread application, both analytically [8][9][10] and numerically in PIC codes [11,12]. Despite worries regarding its perturbative nature, there is evidence to suggest that it is valid provided only that quantum effects can be neglected [13,14].…”

Section: Introductionmentioning

confidence: 99%

Cooling of relativistic electron beams in intense laser pulses: Chirps and radiation

Yoffe

Noble

MacLeod

et al. 2016

Nuclear Instruments and Methods in Physics Research Section A:

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Next-generation high-power laser facilities (such as the Extreme Light Infrastructure) will provide unprecedented field intensities, and will allow us to probe qualitatively new physical regimes for the first time. One of the important fundamental questions which will be addressed is particle dynamics when radiation reaction and quantum effects play a significant role. Classical theories of radiation reaction predict beam cooling in the interaction of a relativistic electron bunch and a high-intensity laser pulse, with final-state properties only dependent on the laser fluence. The observed quantum suppression of this cooling instead exhibits a dependence on the laser intensity directly. This offers the potential for final-state properties to be modified or even controlled by tailoring the intensity profile of the laser pulse. In addition to beam properties, quantum effects will be manifest in the emitted radiation spectra, which could be manipulated for use as radiation sources. We compare predictions made by classical, quasi-classical and stochastic theories of radiation reaction, and investigate the influence of chirped laser pulses on the observed radiation spectra.

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All-Optical Radiation Reaction at1021 W/cm2

Cited by 88 publications

References 31 publications

Quantum radiation reaction in head-on laser-electron beam interaction

Quantum radiation reaction in head-on laser-electron beam interaction

Inverse Faraday effect driven by radiation friction

Cooling of relativistic electron beams in intense laser pulses: Chirps and radiation

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