Quantum mechanical look at the radioactive-like decay of metastable dark energy

Szydłowski, Marek (Astronomical Observatory, Jagiellonian University, 0000 0001 2162 9631, Orla 171, 30-244, Kraków, Poland) (Mark Kac Complex Systems Research Centre, Jagiellonian University, 0000 0001 2162 9631, Łojasiewicza 11, 30-348, Kraków, Poland) ; Stachowski, Aleksander (Astronomical Observatory, Jagiellonian University, 0000 0001 2162 9631, Orla 171, 30-244, Kraków, Poland) ; Urbanowski, Krzysztof (Institute of Physics, University of Zielona Góra, 0000 0001 0711 4236, Prof. Z. Szafrana 4a, 65-516, Zielona Gora, Poland)

24 December 2017

Abstract: We derive the Shafieloo, Hazra, Sahni and Starobinsky (SHSS) phenomenological formula for the radioactive-like decay of metastable dark energy directly from the principles of quantum mechanics. To this aim we use the Fock–Krylov theory of quantum unstable states. We obtain deeper insight on the decay process as having three basic phases: the phase of radioactive decay, the next phase of damping oscillations, and finally the phase of power-law decay. We consider the cosmological model with matter and dark energy in the form of decaying metastable dark energy and study its dynamics in the framework of non-conservative cosmology with an interacting term determined by the running cosmological parameter. We study the cosmological implications of metastable dark energy and estimate the characteristic time of ending of the radioactive-like decay epoch to be 2.2×104 of the present age of the Universe. We also confront the model with astronomical data which show that the model is in good agreement with the observations. Our general conclusion is that we are living in the epoch of the radioactive-like decay of metastable dark energy which is a relict of the quantum age of the Universe.


Published in: EPJC 77 (2017) 902
Published by: Springer/Società Italiana di Fisica
DOI: 10.1140/epjc/s10052-017-5471-8
License: CC-BY-3.0



Back to search

Fulltext:
Download fulltextXML Download fulltextPDF (PDFA)