459 citations · 1.2k across the 7 of their papers we have counts for
7 papers
Diffeomorphisms as Symplectomorphisms in History Phase Space: Bosonic String Model
Ioannis Kouletsis, Karel. V. Kuchar
The structure of the history phase space of a covariant field system and its history group (in the sense of Isham and Linden) is analyzed on an example of a bosonic string…
Null dust in canonical gravity
J. Bicak, K. Kuchar
We present the Lagrangian and Hamiltonian framework which incorporates null dust as a source into canonical gravity. Null dust is a generalized Lagrangian system which is described…
Dirac Constraint Quantization of a Dilatonic Model of Gravitational Collapse
Karel V. Kuchar, Joseph D. Romano, Madhavan Varadarajan
We present an anomaly-free Dirac constraint quantization of the string-inspired dilatonic gravity (the CGHS model) in an open 2-dimensional spacetime. We show that the quantum theo…
Gravitational Constraints which Generate a Lie Algebra
Karel V. Kuchar, Joseph D. Romano
The coupling of gravity to dust helps to discover simple quadratic combinations of the gravitational super-Hamiltonian and supermomentum whose Poisson brackets strongly vanish. Thi…
Dust as a Standard of Space and Time in Canonical Quantum Gravity
J. D. Brown, K. V. Kuchar
The coupling of the metric to an incoherent dust introduces into spacetime a privileged dynamical reference frame and time foliation. The comoving coordinates of the dust particles…
Geometrodynamics of Schwarzschild Black Holes
Karel V. Kuchař
The curvature coordinates of a Schwarz\-schild spacetime are turned into canonical coordinates on the phase space of spherically symmetric black holes. The…
Canonical Quantum Gravity
Karel Kuchar
This is a review of the aspirations and disappointments of the canonical quantization of geometry. I compare the two chief ways of looking at canonical gravity, geometrodynamics an…