Working Paper Review Version 1 This version is not peer-reviewed

Quantum Universe: A Particle Moving or a Wave Propagating?

Version 1 : Received: 25 June 2021 / Approved: 29 June 2021 / Online: 29 June 2021 (11:33:04 CEST)

A peer-reviewed article of this Preprint also exists.

Robles-Pérez, S.J. Quantum Cosmology with Third Quantisation. Universe 2021, 7, 404. Robles-Pérez, S.J. Quantum Cosmology with Third Quantisation. Universe 2021, 7, 404.


The wave-particle description of quantum mechanics is briefly reviewed to set an analogy between the quantum mechanics of particles and fields and quantum cosmology. It is shown that quantum cosmology can be seen as a quantum field theory developed in the space of three metrics (the metrics of the spatial sections of the spacetime), where the classical evolution of the universe corresponds to a definite trajectory and the quantum mechanics of matter fields emerges as the first order quantum correction. Like in a quantum field theory developed in an isotropic background, the universes are created in universe-antiuniverse pairs, which might provide us with an explanation for the matter-antimatter asymmetry observed in our universe without going beyond the standard model. Moreover, the states of the matter and the antimatter fields of the pair of universes are entangled and that makes that their initial states are in a non-vacuum state (presumably in a thermal state). That might open the possibility of looking for observable imprints of the creation of universes in pairs is the astronomical data.


quantum cosmology; multiverse; superspace; shape space; universe-antiuniverse pair


Physical Sciences, Acoustics

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