Results 121 to 130 of about 197,098 (270)
COSMOLOGICAL PERTURBATIONS AND THE RUNNING COSMOLOGICAL CONSTANT MODEL [PDF]
International Journal of Modern Physics D, 2012 We study the matter density fluctuations in the running cosmological constant (RCC) model using linear perturbations in the longitudinal gauge. Using this observable, we calculate the growth rate of structures and the matter power spectrum, and compare these results to SDSS data and the available data for linear growth rate.
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International Journal of Systematic Theology, EarlyView.Abstract In this contribution to a book symposium on Gregory of Nyssa’s On the Human Image, Morwenna Ludlow reflects on John Behr’s attention to the literary structure and argumentative flow of the book, its interplay with the similarly structured Timaeus of Plato and the difficulties of translating a work of such rhetorical and pastoral sophistication
Morwenna Ludlow
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Book Symposium Introduction: John Behr, Gregory of Nyssa: On the Human Image of God
International Journal of Systematic Theology, EarlyView.Abstract This article introduces a series of response essays to John Behr’s Gregory of Nyssa: On the Human Image of God, which includes contributions from Rowan Williams, Morwenna Ludlow, Paul Blowers, Gabrielle Thomas and Martin Laird – with a final response from John Behr.
Thomas Breedlove, Alex Fogleman
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Cosmology of a higher derivative scalar theory with non-minimal Maxwell coupling
European Physical Journal C: Particles and Fields, 2019 Higher derivative scalar field theory in curved space-time belongs to the GLPV theory coupled non-minimally to the Maxwell field is considered. We will show that the theory admits two independent exact de Sitter solutions in the FRW background, one ...
Shahab Shahidi
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Cosmological Constant From Degenerate Vacua [PDF]
Physical Review Letters, 2002 Under the hypothesis that the cosmological constant vanishes in the true ground state with lowest possible energy density, we argue that the observed small but finite vacuum-like energy density can be explained if we consider a theory with two or more degenerate perturbative vacua, which are unstable due to quantum tunneling, and if we still live in ...
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International Journal of Art &Design Education, EarlyView.Abstract This paper explores how ‘what matters’ can surface in multisensory arts‐informed projects as ways for young people to survive and stay with gender and sexuality troubles that are always more than theirs. Situated in an ex‐mining post‐industrial locale, we make an agential cut in a longitudinal research and engagement project called Unboxing ...
EJ Renold
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The cosmological constant (Λ) problem represents a profound inconsistency at the foundationof modern theoretical physics. In this paper, we propose a phenomenological model wherein Λis not a fixed value but rather a dynamic quantity, interpreted as the effective potential energy ofa scalar field coupled to the expansion of the universe.
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Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, EarlyView.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
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Charged wormholes in (anti-)de Sitter spacetime
Physics Letters BWe present a family of charged, traversable wormhole solutions in the presence of a cosmological constant. In de Sitter spacetime, two types of wormhole throats can exist–referred to as typical and cosmological throat–located at small and large radial ...
Hyeong-Chan Kim, Wonwoo Lee
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Meteoritics &Planetary Science, EarlyView.Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews +5 more
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