Double group
id:
double-group-202-17275331
title:
Double group
text:
The concept of a double group was introduced by Hans Bethe for the quantitative treatment of magnetochemistry. Because the fermions change phase with 360 degree rotation, enhanced symmetry groups that describe band
degeneracy and topological properties of magnonic systems are needed, which depend not only on geometric rotation, but on the corresponding fermionic phase factor in representations (for the related mathematical concept, see the formal definition). They were introduced for studying co
brand slug:
wiki
category slug:
encyclopedia
description:
Use of mathematical groups in magnetochemistry
original url:
https://en.wikipedia.org/wiki/Double_group
date created:
date modified:
2024-04-09T21:40:17Z
main entity:
{"identifier":"Q111947966","url":"https://www.wikidata.org/entity/Q111947966"}
image:
fields total:
13
integrity:
14