Results 61 to 70 of about 691 (230)
A local Wheeler-DeWitt measure for the string landscape
Nuclear Physics B, 2023 According to the ‘Cosmological Central Dogma’, de Sitter space can be viewed as a quantum mechanical system with a finite number of degrees of freedom, set by the horizon area.
Bjoern Friedrich +4 more
doaj +1 more source
Inflationary resolution of the initial singularity
Physics Letters BThe inflationary paradigm has transformed our understanding of the early universe; yet most inflationary models are considered geodesically past-incomplete, suggesting a beginning of time or a primordial Big Bang singularity. The Borde-Guth-Vilenkin (BGV)
Damien A. Easson, Joseph E. Lesnefsky
doaj +1 more source
Soft de Sitter Effective Theory
Journal of High Energy Physics, 2020 Calculating the quantum evolution of a de Sitter universe on superhorizon scales is notoriously difficult. To address this challenge, we introduce the Soft de Sitter Effective Theory (SdSET).
Timothy Cohen, Daniel Green
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Swampland constraints on no-boundary quantum cosmology
Journal of High Energy Physics, 2020 The Hartle-Hawking no-boundary proposal describes the quantum creation of the universe. To have a non-negligible probability to obtain a classical expanding universe, eternal inflation is required, which is severely constrained by Swampland conjectures ...
Hiroki Matsui, Takahiro Terada
doaj +1 more source
Myth and politics: behavioral archetypes in ancient Iran and persistence in power and politics [PDF]
مجله مطالعات ایرانی, 2020 1. Introduction Our minds are shaped by human history, and the thoughts of our forefathers certainly exercise undeniable influence on its structure. On this ground, when carefully analyzing our mental processes, we might need to examine how other people ...
Fateh Moradi
doaj +1 more source
The phase transition to eternal inflation [PDF]
Journal of High Energy Physics, 2008 48 pages, 8 figures.
Creminelli, Paolo +4 more
openaire +2 more sources
Holographic framework for eternal inflation [PDF]
Physical Review D, 2006 53 pages, 7 figures; v2: minor corrections, typos in section 6.2 ...
Freivogel, Ben +3 more
openaire +2 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT This study examines the strategic efficacy of corporate low‐carbon energy transition, such as through nuclear energy adoption, as a response to decarbonization pressures. Analyzing an international sample of energy firms, we demonstrate that the relationship between this form of transition and emission reductions is not technologically ...
Bilal Ahmed Abbasi +4 more
wiley +1 more source
Crunching away the cosmological constant problem: dynamical selection of a small Λ
Journal of High Energy Physics, 2020 We propose a novel explanation for the smallness of the observed cosmological constant (CC). Regions of space with a large CC are short lived and are dynamically driven to crunch soon after the end of inflation.
Itay M. Bloch +3 more
doaj +1 more source
Eternal inflation with arrival terminals
Physical Review D, 2015 We analyze the cosmological role of terminal vacua in the string theory landscape, and point out that existing work on this topic makes very strong assumptions about the properties of the terminal vacua. We explore the implications of relaxing these assumptions (by including "arrival" as well as "departure" terminals) and demonstrate that the results ...
Stoltenberg, Henry, Albrecht, Andreas
openaire +3 more sources