EntityQ1592413· pop 7· linked from 9 articlesScharnhorst effectSign in to savehypothesised phenomenon in quantum field theoryConnectionsfaster-than-lightEntityGermanyCountryphotonEntitydigital object identifierEntityHumboldt-Universität zu BerlinEntityrefractive indexEntitybibcodeEntityQ118398Entityquantum electrodynamicsEntityCasimir effectEntityAnnalen der PhysikEntityNew ScientistEntityquantum fluctuationEntityPhysical ReviewEntitycausalityEntityPhysics LettersEntityScience NewsEntityAnnals of PhysicsEntityJournal of Physics AEntityCategoriesFaster-than-light travelHypotheses in physicsQuantum electrodynamics