This paper analyzes localized invariable-form structures of electromagnetic radiation in vacuum and soliton-like light structures traveling superluminally in a nonlinear medium. Both types of structures are concluded to be unstable to small perturbations.
No takes yet. Share an insight, caveat, or question.
Н. Н. Розанов (2005) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: