2017/04/30 by Marek Szydlowski, Marek Szydłowski, Aleksander Stachowski +1 · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Mathematical Theories and Applications #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Earth Systems and Cosmic Evolution #Energy (signal processing) #Epoch (astronomy) #Metastability #Phase (matter) #Quantum #gr-qc #hep-th
paper · pdf · doi:10.1140/epjc/s10052-017-5471-8
published as Eur. Phys. J. C77, 902 (2017) · v2: 14 pages, 7 figures, change of title, new discussion of crossover time and new result on characteristic time of ending of radioactive-like decay epoch
arxiv created 2017/11/06 · openalex publication_date 2017/12/01 · openalex created_date 2018/01/05 · arxiv updated 2018/05/22 · openalex updated_date 2026/08/05
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.