Results 61 to 70 of about 32,224 (210)

Cycles in the Multiverse

open access: yes, 2011
Eternal inflation is a seemingly generic consequence of theories that give rise to accelerated expansion of the universe and possess multiple vacuum states.
Johnson, Matthew C., Lehners, Jean-Luc
core   +1 more source

Towards Advanced Intelligent and Perceptive Soft Grippers

open access: yesAdvanced Intelligent Systems, EarlyView.
Implementing soft yet strong and intelligent soft grippers request innovative and creative solutions in designing soft bodies and seamlessly integrating actuated systems with hierarchical sensing. This review systematically analyses soft grippers with a deep understanding of core components, from fundamental design principles to actuation and sensing ...
Haneul Kim   +4 more
wiley   +1 more source

Crunching away the cosmological constant problem: dynamical selection of a small Λ

open access: yesJournal 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

An obstacle to populating the string theory landscape [PDF]

open access: yes, 2008
We construct domain walls and instantons in a class of models with coupled scalar fields, determining, in agreement with previous studies, that many such solutions contain naked timelike singularities.
Johnson, Matthew C, Larfors, Magdalena
core   +2 more sources

Low‐Carbon Energy Transition and Corporate Carbon Emissions: The Critical Role of Climate Change Mitigation Policies and Institutional Context

open access: yesBusiness 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

Non-perpetual eternal inflation and the emergent de Sitter Swampland conjecture

open access: yesEuropean Physical Journal C: Particles and Fields
We introduce a novel correlation, $$n_{\text {s}}$$ n s - $$\Delta N$$ Δ N , connecting CMB parameters to the required total e-folds for eternal inflation. This correlation provides a robust tool for evaluating eternal (string) inflation models using CMB
Omer Guleryuz
doaj   +1 more source

A more attractive scheme for radion stabilization and supercooled phase transition

open access: yesJournal of High Energy Physics, 2020
We propose a new radion stabilization mechanism in the Randall-Sundrum spacetime, introducing a bulk SU(N H ) gauge field which confines at a TeV scale. It turns out that the radion is stabilized by the balance between a brane tension and a pressure due ...
Kohei Fujikura   +2 more
doaj   +1 more source

Predictions in Eternal Inflation [PDF]

open access: yes, 2007
Invited review for a LNP volume on inflationary cosmology. Figures included. Cosmetic changes, references reformatted according to "apsrev" Bibtex style to avoid citation ordering problems.
openaire   +2 more sources

Dynamical renormalization group methods in theory of eternal inflation

open access: yes, 2008
Dynamics of eternal inflation on the landscape admits description in terms of the Martin-Siggia-Rose (MSR) effective field theory that is in one-to-one correspondence with vacuum dynamics equations.
A. D. Linde   +9 more
core   +1 more source

Epilepsy in emerging adulthood: Clinical, psychosocial, and surgical challenges

open access: yesEpilepsia, EarlyView.
Abstract Objective Emerging adulthood (EAs; ages 19–29 years) is a unique developmental stage marked by major psychological, social, and occupational transitions. We sought to characterize the clinical, psychosocial, and surgical features of epilepsy in emerging adulthood, considering both current age and age at epilepsy onset.
Graham A. McLeod   +26 more
wiley   +1 more source

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