Results 41 to 50 of about 1,005 (182)
What drove cosmic inflation? [PDF]
Chinese Science Bulletin, 2017 Inflation is the leading paradigm for the early Universe. Not only it solves several major puzzles of the Hot Big Bang model, such as the flatness puzzle, the horizon puzzle, and so on, but it offers a natural mechanism to explain the origin of cosmic structures.
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BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.ABSTRACT Background Immersive virtual reality (VR) technology offers a non‐invasive, non‐pharmacological approach to reduce pain perception in patients undergoing diagnostic or interventional procedures. Objective To systematically evaluate the efficacy of immersive VR technology in reducing pain perception during obstetric and gynaecological ...
Jhia Jiat Teh +5 more
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Uncovering the history of cosmic inflation from anomalies in cosmic microwave background spectra
European Physical Journal C: Particles and Fields, 2022 We propose an inflationary primordial feature model that can explain both the large and small-scale anomalies in the currently measured cosmic microwave background anisotropy spectra, revealing a clip of adventurous history of the Universe during its ...
Matteo Braglia +2 more
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Golden weapons and golden fetters: From the gold standard to the new geopolitics
The Economic History Review, EarlyView.Abstract This paper explores the historical relationship between monetary regimes, security concerns, and geopolitical tensions, particularly focusing on the role of gold. Throughout history, monetary systems have been deeply intertwined with international state systems and security provisions.
Harold James
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Non-perpetual eternal inflation and the emergent de Sitter Swampland conjecture
European Physical Journal C: Particles and FieldsWe 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
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Heavy-lifting of gauge theories by cosmic inflation
Journal of High Energy Physics, 2018 Future measurements of primordial non-Gaussianity can reveal cosmologically produced particles with masses of order the inflationary Hubble scale and their interactions with the inflaton, giving us crucial insights into the structure of fundamental ...
Soubhik Kumar, Raman Sundrum
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Holographic realization of constant roll inflation and dark energy: An unified scenario
Physics Letters B, 2023 In the formalism of generalized holographic dark energy, the infrared cut-off LIR is generalized to the form, LIR=LIR(Lp,L˙p,L¨p,⋯,Lf,L˙f,L¨f,⋯,a,H,H˙,H¨,⋯), where Lp and Lf are the particle horizon and the future horizon, respectively (moreover, a is ...
Shin'ichi Nojiri +2 more
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, 2001 I review the current status of the theory of Cosmic Inflation. My discussion covers the motivation and implementation of the idea, as well as an analysis of recent successes and open questions. There is a special discussion of the physics of ``cosmic coherence'' in the primordial perturbations.
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Disturbing dreams and dementia incidence across diverse cohort studies: A COSMIC collaboration study
Psychiatry and Clinical Neurosciences, EarlyView.Aim Distressing dreams were previously reported to predict future all‐cause dementia among predominantly white US participants aged 79–89 years, particularly in men. We investigated whether disturbing dreams (nightmares and bad dreams) were associated with all‐cause and Alzheimer dementia (AD) among individuals aged 60–89 years from diverse ...
Darren M. Lipnicki +18 more
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Towards the physical vacuum of cosmic inflation
Physics Letters B, 2016 There have been long debates about the initial conditions of inflationary perturbations. In this work we explicitly show the decay of excited states during inflation via interactions from the renormalization group point of view. For this purpose, we note
Hongliang Jiang, Yi Wang
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