All Physics Faculty Publications

Title

The Propagation Amplitude in Spinorial Gravity

Document Type

Article

Journal/Book Title/Conference

Classical and Quantum Gravity

Volume

5

Issue

2

Publisher

Institute of Physics

Publication Date

1988

First Page

L63

Last Page

L68

DOI

10.1088/0264-9381/5/2/005

Abstract

The author considers the propagator between two field configurations in the quantum theory of gravity based on the new variables of Ashtekar (1986). The central tool in the analysis is the BRST formalism as developed by Batalin, Fradkin and Vilkovisky (1977, 1983). The author uses a combination of functional integral and operator techniques to show that the amplitude is expressible as the matrix element of a relatively simple ghost-extended evolution operator. The amplitude is then to be averaged over the kinematic (or gauge) group which is a semi-direct product of the spatial diffeomorphism and local SU(2) groups.

Comments

Originally published by the Institute of Physics. Publisher's PDF available through remote link.

http://iopscience.iop.org/0264-9381/5/2/005