Quantum vacuum signatures in multicolor laser pulse collisions

Gies, Holger; Karbstein, Felix; Klar, Leonhard

doi:10.1103/physrevd.103.076009

Cited by 13 publications

(8 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…See also [609] for another recent study considering the emission of twisted photons from the laser-driven quantum vacuum. Additional setups involving the scattering of three or more laser pulses of different frequencies were analyzed in [610,579,611,612], and the potential of inducing interference effects in quantum vacuum signals was highlighted in [539,540,533].…”

Section: All-optical Signatures Of Quantum Vacuum Nonlinearitymentioning

confidence: 99%

Advances in QED with intense background fields

Fedotov¹,

Ilderton²,

Karbstein³

et al. 2022

Preprint

View full text Add to dashboard Cite

Upcoming and planned experiments combining increasingly intense lasers and energetic particle beams will access new regimes of nonlinear, relativistic, quantum effects. This improved experimental capability has driven substantial progress in QED in intense background fields. We review here the advances made during the last decade, with a focus on theory and phenomenology. As ever higher intensities are reached, it becomes necessary to consider processes at higher orders in both the number of scattered particles and the number of loops, and to account for non-perturbative physics (e.g. the Schwinger effect), with extreme intensities requiring resummation of the loop expansion. In addition to increased intensity, experiments will reach higher accuracy, and these improvements are being matched by developments in theory such as in approximation frameworks, the description of finite-size effects, and the range of physical phenomena analysed. Topics on which there has been substantial progress include: radiation reaction, spin and polarisation, nonlinear quantum vacuum effects and connections to other fields including physics beyond the Standard Model.

show abstract

Section: All-optical Signatures Of Quantum Vacuum Nonlinearitymentioning

confidence: 99%

Advances in QED with intense background fields

Fedotov¹,

Ilderton²,

Karbstein³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The low-energy (photonic) dynamics of QED is described by the Euler-Heisenberg effective Lagrangian which ascribes, to constant or slowly varying electromagnetic fields, two vacuum refractive indices. These modify the propagation of probe photons, leading to the effect of vacuum birefringence [18]; that is, the polarisation rotation of a beam of photons traversing a strong electromagnetic background (clearly a genuine loop effect; see [13,79,80] for recent and related investigations). This effect is supported on the difference of the refractive indices, but in supersymmetric QED (as in e.g.…”

Section: N = 1 Susy Gauge Theoriesmentioning

confidence: 99%

One-loop multicollinear limits from 2-point amplitudes on self-dual backgrounds

Adamo

Ilderton

MacLeod

2021

J. High Energ. Phys.

View full text Add to dashboard Cite

For scattering amplitudes in strong background fields, it is — at least in principle — possible to perturbatively expand the background to obtain higher-point vacuum amplitudes. In the case of self-dual plane wave backgrounds we consider this expansion for two-point, one-loop amplitudes in pure Yang-Mills, QED and QCD. This enables us to obtain multicollinear limits of 1-loop vacuum amplitudes; the resulting helicity configurations are surprisingly restricted, with only the all-plus helicity amplitude surviving. These results are shown to be consistent with well-known vacuum amplitudes. We also show that for both abelian and non-abelian supersymmetric gauge theories, there is no helicity flip (and hence no vacuum birefringence) on any plane wave background, generalising a result previously known in the Euler-Heisenberg limit of super-QED.

show abstract

“…, the corresponding quantities of discernible photons, generically defined as those emitted outside of the opening cones of the driving beams, as commonly done in this context [60,63,69], with some more detailed criteria that will be specified in each case of study.…”

Section: Numerical Implementationmentioning

confidence: 99%

“…This property can potentially prove decisive for obtaining a signal discernible from the background of the driving laser photons beyond reasonable doubt. Indeed, the discernibility criterion used in our work as well as in many others [60,63,69] typically relies on the idealization of the photon distribution of the background beams as Gaussian, hence falling to negligible levels at a finite separation from their propagation direction. However, as there are about 20 orders of magnitude more background than signal photons, this assumption is extremely vulnerable to any laser imperfections or insufficient shielding against parasitic radiation [92], even at crossed-polarization.…”

Section: Vacuum Signatures From a Secondary Beam Assisted Chf Fieldmentioning

confidence: 99%

Quantum vacuum processes in the extremely intense light of relativistic plasma mirror sources

Sainte-Marie,

Fedeli,

Zaïm

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

The advent of Petawatt-class laser systems allows generating electromagnetic fields of unprecedented strength in a controlled environment, driving increasingly more efforts to probe yet unobserved processes through their interaction with the quantum vacuum. Still, the lowest intensity scale governing these effects lies orders of magnitude beyond foreseen capabilities, so that such endeavor is expected to remain extremely challenging. In recent years, however, plasma mirrors have emerged as a promising bridge across this gap, by enabling the conversion of intense infrared laser pulses into coherently focused Doppler harmonic beams lying in the X-UV range. In this work, we present quantitative predictions on the quantum vacuum signatures produced when such beams are focused to intensities between 10 24 and 10 28 W.cm −2 . These signatures, which notably include photon-photon scattering and electron-positron pair creation, are obtained using state-of-the-art massively parallel numerical tools. In view of identifying experimentally favorable configurations, we also consider the coupling of the focused harmonic beam with an auxiliary optical beam, and provide comparison with other established schemes. Our results show that a single coherently focused harmonic beam can produce as much scattered photons as two infrared pulses in head-on collision, and confirm that the coupling of the harmonic beam to an auxiliary beam gives rise to significant levels of inelastic scattering, and hence holds the potential to strongly improve the attainable signal to noise ratios in experiments.

show abstract

Quantum vacuum signatures in multicolor laser pulse collisions

Cited by 13 publications

References 49 publications

Advances in QED with intense background fields

Advances in QED with intense background fields

One-loop multicollinear limits from 2-point amplitudes on self-dual backgrounds

Quantum vacuum processes in the extremely intense light of relativistic plasma mirror sources

Contact Info

Product

Resources

About