Linearized Poisson geometry and gauge fields
Abstract:
In the paper, we show how classical dynamics of particles in a gravitational
and Yang-Mills field emerges naturally from the geometry of a general Poisson
manifold as a second order approximation of a Hamiltonian system on this
manifold. The Hamiltonian only has to have vanishing differential on some
Lagrangian submanifold X of a locally minimal, polarized symplectic
leaf and satisfy a non-degeneracy condition. Furthermore, Higgs fields
are naturally present if the systems in coisotropically constraint. The
most important feature of the work is the definition of an E-connection
form associated to such a Hamiltonian on X, where E is a
natural Lie algebroid over X.