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Symplectic manifolds, coadjoint orbits, and Mean Field Theory

Conference · · Int. J. Theor. Phys.; (United States)
OSTI ID:6770573
Mean field theory is given a geometrical interpretation as a Hamiltonian dynamical system. The Hartree-Fock phase space is the Grassmann manifold, a symplectic submanifold of the projective space of the full many-fermion Hilbert space. The integral curves of the Hartree-Fock vector field are the time-dependent Hartree-Fock solutions, while the critical points of the energy function are the time-independent states. The mean field theory is generalized beyond determinants to coadjoint orbit spaces of the unitary group; the Grassmann variety is the minimal coadjoint orbit.
Research Organization:
Tulane Univ., New Orleans, LA
OSTI ID:
6770573
Report Number(s):
CONF-8505305-
Conference Information:
Journal Name: Int. J. Theor. Phys.; (United States) Journal Volume: 25:5
Country of Publication:
United States
Language:
English