Results 51 to 60 of about 305,041 (219)
Exit from inflation with a first-order phase transition and a gravitational wave blast
Physics Letters B, 2015 In double-field inflation, which exploits two scalar fields, one of the fields rolls slowly during inflation whereas the other field is trapped in a meta-stable vacuum.
Amjad Ashoorioon
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
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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
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Eternal chaotic inflation is prohibited by the weak gravity conjecture
, 2007 We investigate whether eternal chaotic inflation can be achieved when the weak gravity conjecture is taken into account. We show that even assisted chaotic inflation with potential λφ4 or m 2φ2 cannot be eternal.
Wang, Yi, Huang, Qing Guo, Li, Miao
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Eternal Inflation With Non-Inflationary Pocket Universes [PDF]
, 2012 Eternal inflation produces pocket universes with all physically allowed vacua and histories. Some of these pocket universes might contain a phase of slow-roll inflation, some might undergo cycles of cosmological evolution and some might look like the ...
Lehners, J.
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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
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Climate‐Related Disclosure and Bank Performance: Does Bank Type Matter?
Business Strategy and the Environment, EarlyView.ABSTRACT This paper investigates whether climate‐related disclosure (CRD) affects the financial performance of conventional banks (CBs) and Islamic banks (IBs) differently. Using a unique hand‐collected dataset on CRD for 591 banks (422 CBs and 169 IBs) from 24 countries over a 4‐year period, we examine how the relationship between CRD and financial ...
Rasim Simsek +2 more
wiley +1 more source
Journal of the Agricultural and Applied Economics Association, EarlyView.Abstract Greenhouse gas emissions from crop production contribute to anthropogenic climate change, while agricultural soils also sequester atmospheric carbon. Direct measurement of soil organic carbon (SOC) is limited by high sampling costs and the vast spatial extent of farmland.
Devin Allen Serfas
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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
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