Driven by strong fields, vacuum manifests itself as a nonlinear polarization medium, yet this hallmark prediction of quantum electrodynamics remains experimentally elusive for 90 years. Here, the authors uncover a super light-by-light scattering effect in vacuum, and propose an experimental scheme that holds promise for single-shot detection of this vacuum polarization effect with current technologies
- Zhigang Bu
- Lingang Zhang
- Liangliang Ji