Results 11 to 20 of about 464 (182)

Topology of Born-Infeld AdS black holes in 4D novel Einstein-Gauss-Bonnet gravity

open access: yesPhysics Letters B, 2022
The topological classification of critical points of black holes in 4D Einstein-Gauss-Bonnet gravity coupled to Born-Infeld theory is investigated. Considered independently, Born-infeld corrections to the Einstein action alter the topological charge of ...
Pavan Kumar Yerra   +1 more
doaj   +1 more source

BORN–INFELD GRAVITY REVISITED [PDF]

open access: yesInternational Journal of Modern Physics A, 2013
In this paper, we investigate the behavior of linearized gravitational excitation in the Born–Infeld gravity in AdS3 space. We obtain the linearized equation of motion and show that this higher-order gravity propagate two gravitons, massless and massive, on the AdS3 background. In contrast to the R2 models, such as TMG or NMG, Born–Infeld gravity does
Setare, M. R., Sahraee, M.
openaire   +2 more sources

“THE GOD WITH CLAY”: THE IDEA OF DEEP INCARNATION AND THE INFORMATIONAL UNIVERSE

open access: yesZygon®, Volume 58, Issue 3, Page 683-713, September 2023., 2023
Abstract This article explores the relations between the idea of deep incarnation and scientific ideas of an informational universe, in which mass, energy, and information belong together. It is argued that the cosmic Christologies developed in the vein of Cappadocian theology (fourth century) and the Franciscan theologian Bonaventure (thirteenth ...
Niels Henrik Gregersen
wiley   +1 more source

Born-Infeld-Hořava gravity [PDF]

open access: yesPhysical Review D, 2010
7 pages, typo corrected, matches the published ...
Gullu, Ibrahim   +2 more
openaire   +3 more sources

A Minimal b Ghost

open access: yesFortschritte der Physik, Volume 71, Issue 6-7, July 2023., 2023
Abstract The b ghost, or b operator, used for fixing Siegel gauge in the pure spinor superfield formalism, is a composite operator of negative ghost number, satisfying {q,b}=□$\lbrace q,b\rbrace =\square$, where q is the pure spinor differential (BRST operator). It is traditionally constructed using non‐minimal variables.
Martin Cederwall
wiley   +1 more source

Scientific novelty beyond the experiment

open access: yesMicrobial Biotechnology, Volume 16, Issue 6, Page 1131-1173, June 2023., 2023
Practical experiments drive important scientific discoveries in biology, but theory‐based research studies also contribute novel—sometimes paradigm‐changing—findings. Here, we appraise the roles of theory‐based approaches focusing on the experiment‐dominated wet‐biology research areas of microbiology. Theory‐based studies can transcend barriers imposed
John E. Hallsworth   +9 more
wiley   +1 more source

Non‐Linear Electrodynamics in Blandford–Znajek Energy Extraction

open access: yesAnnalen der Physik, Volume 535, Issue 5, May 2023., 2023
New analysis of black hole energy extraction emphasizes that the existence and behavior of non‐linear electromagnetic phenomena strongly depends on the physical context and that only a power‐law model seems to have any chance to compete with Maxwell. Abstract Non‐linear electrodynamics (NLED) is a generalization of Maxwell's electrodynamics for strong ...
Amodio Carleo   +2 more
wiley   +1 more source

Supersymmetric born-infeld lagrangians [PDF]

open access: yesPhysics Letters B, 1987
Abstract The supersymmetric completion of four-dimensional Born-Infeld-type actions is established by means of superspace techniques for the construction of higher-curvature invariants. The coupling of these actions to supergravity is also obtained. These results are relevant for the understanding of the full effective action of superstring theories.
Cecotti, Sergio, FERRARA S.
openaire   +2 more sources

Holographic Schwinger Effect with a Rotating Probe D3‐Brane

open access: yesAdvances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023
This paper, among other things, talks about possible research on the holographic Schwinger effect with a rotating probe D3‐brane. We discover that for the zero temperature case in the Schwinger effect, the faster the angular velocity and the farther the distance of the test particle pair at D3‐brane, the potential barrier of total potential energy also
Hao Xu   +3 more
wiley   +1 more source

Multiple solutions for asymptotically q‐linear (p, q)‐Laplacian problems

open access: yesMathematical Methods in the Applied Sciences, Volume 45, Issue 14, Page 8655-8673, 30 September 2022., 2022
We investigate the existence and the multiplicity of solutions of the problem −Δpu−Δqu=g(x,u)inΩ,u=0on∂Ω, where Ω is a smooth, bounded domain of ℝN, 1 < p < q < ∞, and the nonlinearity g behaves as uq − 1 at infinity. We use variational methods and find multiple solutions as minimax critical points of the associated energy functional.
Francesca Colasuonno
wiley   +1 more source

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