35 citations · 39 across the 4 of their papers we have counts for
8 papers
Hartle-Hawking's vacuum is full of Vilenkin's universe-antiuniverse pairs
Salvador J. Robles-Pérez
Within the third quantisation formalism, we find solutions of the Wheeler-DeWitt in terms of two sets of modes that can be identified with the Hartle-Hawking's no boundary conditio…
Quantum cosmology with third quantisation
Salvador J. Robles-Pérez
We review the canonical quantisation of the geometry of the spacetime in the cases of a simply and a non-simply connected manifold. In the former, we analyse the information contai…
Quantum-gravity effects for excited states of inflationary perturbations
David Brizuela, Claus Kiefer, Manuel Kraemer +1
We generalize former findings regarding quantum-gravitational corrections arising from a canonical quantization of a perturbed FLRW universe during inflation by considering an init…
Classical geodesics from the canonical quantisation of spacetime coordinates
Iñaki Garay, Salvador Robles-Pérez
A canonical quantisation of the coordinates of the spacetime within the general relativity theory is proposed. This quantisation will depend on the observer but it provides an inte…
Quantum cosmology in the light of quantum mechanics
Salvador J. Robles-Pérez
There is a formal analogy between the evolution of the universe, when this is seen as a trajectory in the minisuperspace, and the worldline followed by a test particle in a curved…
The interacting multiverse and its effect on the cosmic microwave background
Mariam Bouhmadi-López, Manuel Kraemer, João Morais +1
We study a toy model of a multiverse consisting of canonically quantized universes that interact with each other on a quantum level based on a field-theoretical formulation of the…