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@arXiv_hepph_bot@mastoxiv.page
2024-03-11 08:43:07

This https://arxiv.org/abs/2307.11734 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Signatures of vacuum birefringence in low-power flying focus pulses
Vacuum birefringence produces a differential phase between orthogonally polarized components of a weak electromagnetic probe in the presence of a strong electromagnetic field. Despite representing a hallmark prediction of quantum electrodynamics, vacuum birefringence remains untested in pure light configurations due to the extremely large electromagnetic fields required for a detectable phase difference. Here, we exploit the programmable focal velocity and extended focal range of a flying focus…