期刊
UNIVERSE
卷 7, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/universe7050134
关键词
singularities; quantum cosmology; de Broglie-Bohm interpretation; cosmological perturbations; quantum-to-classical transition; dark energy
资金
- CNPq of Brazil [PQ-IB 309073/2017-0]
The de Broglie-Bohm quantum theory is an alternative description of quantum phenomena that does not require the collapse postulate and is applicable to cosmological models, which are usually free of singularities.
We review the de Broglie-Bohm quantum theory. It is an alternative description of quantum phenomena in accordance with all the quantum experiments already performed. Essentially, it is a dynamical theory about objectively real trajectories in the configuration space of the physical system under investigation. Hence, it is not necessarily probabilistic, and it dispenses with the collapse postulate, making it suitable to be applied to cosmology. The emerging cosmological models are usually free of singularities, with a bounce connecting a contracting era with an expanding phase, which we are now observing. A theory of cosmological perturbations can also be constructed under this framework, which can be successfully confronted with current observations, and can complement inflation or even be an alternative to it.
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