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Realization of compact Lie algebras in Kahler manifolds

D Bar-Moshe and M S Marinov

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The Berezin quantization on a simply connected homogeneous Kahler manifold, which is considered as a phase space for a dynamical system, enables a description of the quantal system in a (finite-dimensional) Hilbert space of holomorphic functions corresponding to generalized coherent states. The Lie algebra associated with the manifold symmetry group is given in terms of first-order differential operators. In the classical theory, the Lie algebra is represented by the momentum maps which are functions on the manifold, and the Lie product is the Poisson bracket given by the Kahler structure. The Kahler potentials are constructed for the manifolds related to all compact semi-simple Lie groups. The complex coordinates are introduced by means of the Borel method. The Kahler structure is obtained explicitly for any unitary group representation. The cocycle functions for the Lie algebra and the Killing vector fields on the manifold are also obtained.


PACS

02.20.Sv Lie algebras of Lie groups

02.40.-k Geometry, differential geometry, and topology

MSC

17Bxx Lie algebras and Lie superalgebras (For Lie groups, see 22Exx)

32Q15 Kähler manifolds

22C05 Compact groups

22E60 Lie algebras of Lie groups (For the algebraic theory of Lie algebras, see 17Bxx)

Subjects

Mathematical physics

Dates

Issue 18 (21 September 1994)



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