期刊
CLASSICAL AND QUANTUM GRAVITY
卷 21, 期 23, 页码 5563-5585出版社
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/21/23/017
关键词
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We consider relativistic extended objects described by a reparametrization-invariant local action that depends on the extrinsic curvature of the world-volume swept out by the object as it evolves. We provide a Hamiltonian formulation of the dynamics of such higher derivative models which is motivated by the ADM formulation of general relativity. The canonical momenta are identified by looking at boundary behaviour under small deformations of the action; the relationship between the momentum conjugate to the:embedding functions and the conserved momentum density is established: The canonical Hamiltonian is constructed explicitly; the constraints on the phase space, both primary and secondary, are identified and the role they play in the theory is described. The multipliers implementing the primary constraints are identified in terms of the ADM lapse and shift variables and Hamilton's equations are shown to be consistent with the Euler-Lagrange equations.
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