Results 91 to 100 of about 197,098 (270)
Hadrons, superconductor vortices, and cosmological constant
Physics Letters BWe explore the roles of the trace anomaly in several hadron properties. We derive the scale invariant expression for the pressure from the gravitational form factors (GFF) of QCD which results in consistent results for the mass and rest energy from the ...
Keh-Fei Liu
doaj +1 more source
Eleven spherically symmetric constant density solutions with cosmological constant
, 2006 Einstein's field equations with cosmological constant are analysed for a static, spherically symmetric perfect fluid having constant density. Five new global solutions are described.
Boehmer, Christian G.
core +1 more source
Refusal and Aporia: At the Limits of Anthropological Knowledge
American Anthropologist, EarlyView.ABSTRACT As anthropologists increasingly take up refusal, opacity, and other forms of resistance to surveillance and subjugation, this paper questions what implications this has for the discipline in practice. Considering anthropology's enduring centrality in defining what it means to be human, including the various ways that this category has been ...
Cory‐Alice André‐Johnson
wiley +1 more source
Upper Bounds on the Mass of Fundamental Fields from the Primordial Universe
The Astrophysical JournalWe study the fluctuations in the vacuum zero-point energy associated with quantum fields and their statistical distributions during inflation. It is shown that the perturbations in the vacuum zero-point energy have large amplitudes that are highly non ...
Hassan Firouzjahi
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Quantum Fields and the Cosmological Constant
UniverseIt has been shown that if one solves self-consistently the semiclassical Einstein equations in the presence of a quantum scalar field, with a cutoff on the number of modes, spacetime become flatter when the cutoff increases. Here, we extend the result to
Renata Ferrero +2 more
doaj +1 more source
Anthropology of Consciousness, EarlyView.ABSTRACT This essay examines the controversy surrounding the Bhoot Vidya certificate program proposed by the Faculty of Ayurveda at Banaras Hindu University in 2019. Drawing on media coverage, curricular materials, and government policy, I analyze how the debate reveals broader tensions in the politics of contemporary Ayurveda, nationalism, and ...
Thomas Seibel
wiley +1 more source
Very Light Cosmological Scalar Fields from a Tiny Cosmological Constant
, 2007 We discuss a mechanism which generates a mass term for a scalar field in an expanding universe. The mass of this field turns out to be generated by the cosmological constant and can be naturally small if protected by a conformal symmetry which is however
C. Wetterich +3 more
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Boreas, EarlyView.Gljúfurárjökull, located on the Tröllaskagi Peninsula in northern Iceland, is a small glacier approximately 3.8 km in length. This study analyses the glacier's evolution through a combination of methods including: (i) geomorphological mapping, (ii) Cosmic‐Ray Exposure (CRE) dating, (iii) lichenometry and (iv) palaeoglacier reconstruction (volume ...
Nuria Andrés +14 more
wiley +1 more source
Cosmological constant from a deformation of the Wheeler–DeWitt equation
Nuclear Physics B, 2016 In this paper, we consider the Wheeler–DeWitt equation modified by a deformation of the second quantized canonical commutation relations. Such modified commutation relations are induced by a Generalized Uncertainty Principle.
Remo Garattini, Mir Faizal
doaj +1 more source
, 2007 I review the problem of dark energy focusing on the cosmological constant as the candidate and discuss its implications for the nature of gravity. Part 1 briefly overviews the currently popular `concordance cosmology' and summarises the evidence for dark
A. Albrecht +211 more
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