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Remarks on the issue of time and complex numbers in canonical quantum gravity
1996
Physical Review D, Particles and fields
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We develop the idea that, as a result of the arbitrariness of the factor ordering in Wheeler-DeWitt equation, gauge phases can not, in general, being completely removed from the wave functional in quantum gravity. The latter may be conveniently described by means of a remnant complex term in WDW equation depending of the factor ordering. Taking this equation for granted we can obtain WKB complex solutions and, therefore, we should be able to derive a semiclassical time parameter for the
doi:10.1103/physrevd.54.4185
pmid:10021098
fatcat:6uvy66pnnrh4znjf2lgek2c2wm