[HTML][HTML] Advances in QED with intense background fields

A Fedotov, A Ilderton, F Karbstein, B King, D Seipt… - Physics Reports, 2023 - Elsevier
Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

Expanding nuclear physics horizons with the Gamma Factory

D Budker, JC Berengut, VV Flambaum… - Annalen der …, 2022 - Wiley Online Library
Abstract The Gamma Factory (GF) is an ambitious proposal, currently explored within the
CERN Physics Beyond Colliders program, for a source of photons with energies up to≈ 400 …

Ruling out light axions: The writing is on the wall

KA Beyer, S Sarkar - SciPost Physics, 2023 - scipost.org
We revisit the domain wall problem for QCD axion models with more than one quark
charged under the Peccei-Quinn symmetry. Symmetry breaking during or after inflation …

Implications of the cosmic birefringence measurement for the axion dark matter search

I Obata - Journal of Cosmology and Astroparticle Physics, 2022 - iopscience.iop.org
We show that a recent constraint on the cosmic birefringence effect due to dark energy can
be related to the constraints on the coupling of axion dark matter to photon, by relying on a …

Signatures of linear Breit-Wheeler pair production in polarized collisions

Q Zhao, L Tang, F Wan, BC Liu, RY Liu, RZ Yang… - Physical Review D, 2022 - APS
The polarization characteristics of the linear Breit-Wheeler (LBW) pair-production process in
polarized γ γ colliders have been investigated via our developed spin-resolved binary …

Strong field vacuum birefringence in plane wave pulses

B King, T Heinzl, TG Blackburn - The European Physical Journal C, 2023 - Springer
By combining an adiabatic approach based on a 'locally monochromatic'approximation with
a local Hilbert transform, it is demonstrated how vacuum birefringence in the strong field …

All-optical quantum vacuum signals in two-beam collisions

H Gies, F Karbstein, L Klar - Physical Review D, 2022 - APS
We study the collision of two optical laser pulses in a pump-probe setup using beams with
circular and elliptic cross section and estimate the number of discernible signal photons …

[HTML][HTML] Bounding elastic photon-photon scattering at s≈ 1 MeV using a laser-plasma platform

R Watt, B Kettle, E Gerstmayr, B King, A Alejo… - Physics Letters B, 2025 - Elsevier
We report on a direct search for elastic photon-photon scattering using x-ray and γ photons
from a laser-plasma based experiment. A γ photon beam produced by a laser wakefield …

Vacuum polarization effects in impulsive fields

A Ilderton, H Kingham - Physical Review D, 2024 - APS
Photons im**ing on strong electromagnetic fields can change both momentum and
helicity state, due to quantum vacuum polarization. We investigate these effects in the …

A hybrid beam steering free-space and fiber based optical data center network

Y Liu, JL Benjamin, CWF Parsonson… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Wireless data center networks (DCNs) are promising solutions to mitigate the cabling
complexity in traditional wired DCNs and potentially reduce the end-to-end latency with …