Results 21 to 30 of about 113,880 (205)
Isotropic Loop Quantum Cosmology [PDF]
, 2002 Isotropic models in loop quantum cosmology allow explicit calculations, thanks largely to a completely known volume spectrum, which is exploited in order to write down the evolution equation in a discrete internal time.
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Noncommutative Quantum Cosmology [PDF]
Physical Review Letters, 2002 We propose a model for noncommutative quantum cosmology by means of a deformation of minisuperspace. For the Kantowski-Sachs metric we are able to find the exact wave function. We construct wave packets and show that new quantum states that ``compete'' to be the most probable state appear, in clear contrast with the commutative case.
Octavio Obregón +2 more
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A Brief Introduction to Loop Quantum Cosmology [PDF]
, 2009 In recent years, Loop Quantum Gravity has emerged as a solid candidate for a nonperturbative quantum theory of General Relativity. It is a background independent theory based on a description of the gravitational field in terms of holonomies and fluxes ...
Marugan, Guillermo A. Mena
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Loop cosmological dynamics and dualities with Randall-Sundrum braneworlds [PDF]
, 2006 The discrete quantum geometric effects play an important role in dynamical evolution in the loop quantum cosmology. These effects which are significant at the high energies lead to the quadratic energy density modifications to the Friedmann equation, as ...
A. Ashtekar +6 more
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Noncommutative quantum cosmology [PDF]
Journal of Physics: Conference Series, 2009 Proceedings of DICE2008, Castiglioncello, 22nd-26th September 2008 ...
João Nuno Prata +5 more
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Observations in quantum cosmology
Classical and Quantum Gravity, 2023 AbstractIn this review, we focus on whether a canonical quantization of general relativity can produce testable predictions for cosmology. In particular, we examine how this approach can be used to model the evolution of primordial perturbations.
Leonardo Chataignier +2 more
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Nonlinear quantum cosmology [PDF]
General Relativity and Gravitation, 2009 Final Journal version: Further clarification in Introduction and Conclusion. references added.
Nguyen, L.-H., Parwani, R.R.
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Quantum cosmological models [PDF]
Classical and Quantum Gravity, 2005 revised: now includes time asymmetry, black hole final state etc, 71 ...
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On the cosmological constant in quantum cosmology
, 2006 Quantization of a dust-like closed isotropic cosmological model with a cosmological constant is realized by the method of B. DeWitt \cite{1}. It is shown that such quantization leads to interesting results, in particular, to a finite lifetime of the system, and appearance of the Universe in our world as penetration via the barrier. These purely quantum
Kalinin M.I., Melnikov V.N.
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