Probing vacuum birefringence in an ultrastrong laser field via high-energy gamma-ray polarimetry

Vacuum birefringence (VB), a fundamental prediction of nonlinear QED, has eluded direct laboratory detection due to its extreme weakness. We propose a compact, “self-probing” scheme where a GeV electron beam collides head-on with a petawatt laser pulse. Circularly polarized γ-ray photons, generated...

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Autori principali:	Da-Lin Wang, Xian-Zhang Wu, Rui-Qi Qin, Jiang-Tao Han, Peng-Pei Xie, Bing-Jun Li, Huai-Hang Song, Yan-Fei Li
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	Elsevier 2026-07-01
Serie:	Physics Letters B
Soggetti:	Vacuum birefringence Nonlinear compton scattering Photon polarization
Accesso online:	http://www.sciencedirect.com/science/article/pii/S0370269326003709
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