Lagrangian for Frenkel electron and position’s non-commutativity due to spin

We construct a relativistic spinning-particle Lagrangian where spin is considered as a composite quantity constructed on the base of a non-Grassmann vector-like variable. The variational problem guarantees both a fixed value of the spin and the Frenkel condition on the spin-tensor. The Frenkel condi...

Ausführliche Beschreibung