810 citations · 3.5k across the 32 of their papers we have counts for
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When do knots in light stay knotted?
Hridesh Kedia, Daniel Peralta-Salas, William TM Irvine
An initially knotted light field will stay knotted if it satisfies a set of nonlinear, geometric constraints, i.e. the null conditions, for all space-time. However, the question of…
Weaving knotted vector fields with tunable helicity
Hridesh Kedia, David Foster, Mark R. Dennis +1
We present a general construction of divergence-free knotted vector fields from complex scalar fields, whose closed field lines encode many kinds of knots and links, including toru…
Tying knots in light fields
Hridesh Kedia, Iwo Bialynicki-Birula, Daniel Peralta-Salas +1
We construct a new family of null solutions to Maxwell's equations in free space whose field lines encode all torus knots and links. The evolution of these null fields, analogous t…