skyrmionとは 意味・読み方・使い方

名詞

skyrmion (複数形 skyrmions)

1. (physics, solid state physics, string theory) Any of a particular class of topological soliton that can be used to model certain properties of a nucleon.
   • 1985, William A. Bardeen, Alan R. White (editors), Symposium on Anomalies, Geometry, Topology, World Scientific, page 502,

     No conclusive results are available yet; the hope is that the skyrmion would be stabilized at ${\displaystyle R\approx \lambda _{c}}$, where the gradient expansion breaks down and yet the skyrmion may still carry the quark quantum numbers.

   • 1998, Physics Letters: B., Volume 430, Part 2, North-Holland Publishing Company, page 169,

     The properties of nuclear matter at high densities have been investigated in many ways. Castillejo et al. studied Skyrmion matter by placing SU(2) hedgehog Skyrmions on a lattice and show that the deconfinement phase transition and the chiral symmetry restoration occur above a critical density [11].

2. (physics, solid state physics) A type of topological soliton that occurs in magnetic materials and magnetic thin films.

   Synonym: magnetic skyrmion

派生語

Further reading

• Sigma model on Wikipedia.
• Topological quantum number on Wikipedia.