Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2002-10-17
Gen.Rel.Grav. 35 (2003) 423-436
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
LaTex file, 13 pages. To appear in General Relativity and Gravitation
Scientific paper
Quantization is performed of a Friedmann-Robertson-Walker universe filled with a conformally invariant scalar field and a perfect fluid with equation of state $p=\alpha \rho$. A well-known discrete set of static quantum wormholes is shown to exist for radiation ($\alpha =1/3$), and a novel continuous set is found for cosmic strings ($\alpha = -1/3$), the latter states having throat radii of any size. In both cases wave-packet solutions to the Wheeler-DeWitt equation are obtained with all the properties of evolving quantum wormholes. In the case of a radiation fluid, a detailed analysis of the quantum dynamics is made in the context of the Bohm-de Broglie interpretation. It is shown that a repulsive quantum force inversely proportional to the cube of the scale factor prevents singularities in the quantum domain. For the states considered, there are no particle horizons either.
Lemos Nivaldo A.
Monerat G. A.
No associations
LandOfFree
A Quantum Cosmological Model With Static and Dynamic Wormholes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Quantum Cosmological Model With Static and Dynamic Wormholes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Quantum Cosmological Model With Static and Dynamic Wormholes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-671522