Mixing Skyrmions and Merons in Topological Quasicrystals of Evanescent Optical Field - presented by Dr Henry Putley

Mixing Skyrmions and Merons in Topological Quasicrystals of Evanescent Optical Field

Dr Henry Putley

Dr Henry Putley
Slide at 02:50
1. What are Skyrmions? Henry Putley Skyrmions are topologically protected quasiparticles that exist in a variety of physical contexts, In principle, any three-component vector field can form a skyrmion. They are particularly salient vector textures of a three-component vector field over a 2D plane: Skyrmion topology is characterised by three variables: Polarity p - indicates the direction of the vector at the skyrmion centre and edge Vorticity m - controls the directions of the transverse field components Helicity Y - an initial (in-plane) phase
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Summary (AI generated)

Skyrmions are characterized by their clarity, vorticity, and helicity. The clarity indicates the nature of the skyrmion, while the vorticity distinguishes between a vortex and an anti-vortex. The helicity describes how the field appears rotated at different points. Skyrmions can manifest in various fields such as optics, magnetism, and Bose-Einstein condensates.

These structures are of interest in physics due to their topological charge, which confers robustness against disorder. Skyrmions can exhibit different textures, with the hedgehog configuration being a common example.