Quantum Transitions Through Cosmological Singularities
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2017/07/007
Abstract: In a quantum theory of cosmology spacetime behaves classically only in limited patches of the configuration space on which the wave function of the universe is defined. Quantum transitions can connect classical evolution in different… read more here.
Keywords: cosmological singularities; quantum transitions; cosmology; transitions cosmological ... See more keywords
Critical crossover phenomena driven by symmetry-breaking defects at quantum transitions.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.034139
Abstract: We study the effects of symmetry-breaking defects at continuous quantum transitions (CQTs) of homogeneous systems, which may arise from localized external fields coupled to the order-parameter operator. The problem is addressed within renormalization-group (RG) and… read more here.
Keywords: crossover phenomena; crossover; breaking defects; quantum transitions ... See more keywords
Calculating the Probabilities of Quantum Transitions in Atoms and Molecules Numerically through Functional Integration
Sign Up to like & getrecommendations! Published in 2018 at "Bulletin of the Russian Academy of Sciences: Physics"
DOI: 10.3103/s1062873818120055
Abstract: The probabilities of quantum transitions are described by integrals over trajectories in the space of energy states of a system exposed to an electromagnetic field. A recurrent relationship approach is proposed for numerical calculations of… read more here.
Keywords: transitions atoms; atoms molecules; quantum transitions; molecules numerically ... See more keywords