Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1992-02-05
Nucl.Phys.B385:587-603,1992
Physics
High Energy Physics
High Energy Physics - Theory
23pp
Scientific paper
10.1016/0550-3213(92)90060-O
We find a consistent formulation of the constraints of Quantum Gravity with a cosmological constant in terms of the Ashtekar new variables in the connection representation, including the existence of a state that is a solution to all the constraints. This state is related to the Chern-Simons form constructed from the Ashtekar connection and has an associated metric in spacetime that is everywhere nondegenerate. We then transform this state to the loop representation and find solutions to all the constraint equations for intersecting loops. These states are given by suitable generalizations of the Jones knot polynomial for the case of intersecting knots. These are the first physical states of Quantum Gravity for which an explicit form is known both in the connection and loop representations. Implications of this result are also discussed.
Bruegmann Bernd
Gambini Rodolfo
Pullin Jorge
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