Open AccessFrom Quantum Mechanics to running Λ cosmologies
Author(s) -
Aleksander Stachowski,
Marek Szydłowski,
K. Urbanowski
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1275/1/012040
Subject(s) - dark energy , vacuum energy , physics , cosmological constant , vacuum state , theoretical physics , universe , false vacuum , point (geometry) , state (computer science) , quantum , constant (computer programming) , energy (signal processing) , cosmology , quantum mechanics , computer science , geometry , mathematics , algorithm , programming language
The cosmological model with running dark energy is considered. We assume that the vacuum of the Universe is in a meta–stable state and decays into a true (bare) vacuum state with increasing time. We use quantum theory of decay processes to find energy of the system in the unstable state and apply obtained results to a description of the running dark energy identified with vacuum energy. We also estimate model parameters using astronomical data. From the astronomical point of view our model is in good agreement with data. Moreover, the framework of this model one can explain naturally, smallness of the cosmological constant parameter Λ bare .