Abstract:
The role of the conformal factor was analysed in two gauge-invariant perturbative formulations. Using the classical and quantum linearized perturbation approach given by Mukhanov et al (1992 Phys. Rep. 215 203), the non-physical behaviour of the conformal perturbation as an isolated degree of freedom is shown. In the quantum gravity context, the restriction to conformal perturbations gives us an incompatibility with the dynamical equations.
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Citas:
---------- APA ----------
Forte, M.I. & Laciana, C.E.
(1999)
. Can the conformal factor of the gravitational field be a physical degree of freedom?. Classical and Quantum Gravity, 16(10), 3137-3146.
http://dx.doi.org/10.1088/0264-9381/16/10/307---------- CHICAGO ----------
Forte, M.I., Laciana, C.E.
"Can the conformal factor of the gravitational field be a physical degree of freedom?"
. Classical and Quantum Gravity 16, no. 10
(1999) : 3137-3146.
http://dx.doi.org/10.1088/0264-9381/16/10/307---------- MLA ----------
Forte, M.I., Laciana, C.E.
"Can the conformal factor of the gravitational field be a physical degree of freedom?"
. Classical and Quantum Gravity, vol. 16, no. 10, 1999, pp. 3137-3146.
http://dx.doi.org/10.1088/0264-9381/16/10/307---------- VANCOUVER ----------
Forte, M.I., Laciana, C.E. Can the conformal factor of the gravitational field be a physical degree of freedom?. Classical Quantum Gravity. 1999;16(10):3137-3146.
http://dx.doi.org/10.1088/0264-9381/16/10/307