Answers are grounded in this paper and cite their sources.
We show that QED nonlinear effects imply a phase correction to the linear evolution of electromagnetic waves in vacuum. We provide explicit solutions of the modified Maxwell equations for the propagation of a superposition of two plane waves and calculate analytically and numerically the corresponding phase shift. This provides a new framework for the search of all-optical signatures of photon-photon scattering in vacuum. In particular, we propose an experiment for measuring the phase shift in projected high-power laser facilities.
No takes yet. Share an insight, caveat, or question.
Ferrando et al. (2007) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: