Optical vortex knots and links via holographic metasurfaces
Sign Up to like & getrecommendations! Published in 2020 at "Advances in Physics: X"
DOI: 10.1080/23746149.2020.1843535
Abstract: ABSTRACT Vortices arise in many natural phenomena as dark points of total destructive interference. Sometimes they form continuous lines and even enclosed loops with knotted or linked topologies in three spatial dimensions. Since the mathematical… read more here.
Keywords: optical vortex; holographic metasurfaces; physics; topology ... See more keywords
Stable and unstable vortex knots in excitable media.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review. E"
DOI: 10.1103/physreve.99.012211
Abstract: We study the dynamics of knotted vortices in a bulk excitable medium using the FitzHugh-Nagumo model. From a systematic survey of all knots of at most eight crossings we establish that the generic behavior is… read more here.
Keywords: unstable vortex; geometry; stable unstable; excitable media ... See more keywords
Long-Lived Quantum Vortex Knots
Sign Up to like & getrecommendations! Published in 2018 at "JETP Letters"
DOI: 10.1134/s0021364018050120
Abstract: The dynamics of the simplest torus quantum vortex knots in a superfluid at zero temperature has been simulated with a regularized Biot–Savart law (the torus radii R0 and r0 for the initial vortex configuration are… read more here.
Keywords: lived quantum; quantum vortex; torus; vortex knots ... See more keywords
Quasi-Stable Configurations of Torus Vortex Knots and Links
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Experimental and Theoretical Physics"
DOI: 10.1134/s106377611809008x
Abstract: The dynamics of torus vortex configurations Vn, p, q in a superfluid liquid at zero temperature (n is the number of quantum vortices, p is the number of turns of each filament around the symmetry… read more here.
Keywords: stable configurations; quasi stable; configurations torus; vortex knots ... See more keywords