Results 71 to 80 of about 55,616 (267)

ON GENERATING SOME KNOWN BLACK HOLE SOLUTIONS [PDF]

open access: yesModern Physics Letters A, 2010
In this paper, we have presented an algorithm to generate various black hole solutions in general relativity and alternative theories of gravity. The algorithm involves few dimensional parameters that are assigned suitable values to specify the required black hole.
Rahaman, F.   +3 more
openaire   +2 more sources

Pure Gauss–Bonnet NUT black hole solution: I

open access: yesThe European Physical Journal C, 2022
AbstractWe obtain an exact $$\Lambda $$ Λ -vacuum solution in the pure Gauss–Bonnet gravity with NUT charge in six dimension, with horizon having the product topology of $$S^{(2)} \times S^{(2)}$$ S (
Mukherjee, S. (Sajal), Dadhich, N.
openaire   +4 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

Revisiting the theory of scalar cloud: Kerr-Einstein-Maxwell-Dilaton-Axion black hole

open access: yesNuclear Physics B
In this work, we present the novel exact scalar cloud solution in the Einstein-Maxwell-Dilaton-Axion (EMDA) theory. Traditionally, the scalar cloud is examined using an approximation approach known as the AAM technique, which operates in the ultralight ...
David Senjaya
doaj   +1 more source

Hoffmann–Infeld black-hole solutions in Lovelock gravity [PDF]

open access: yesClassical and Quantum Gravity, 2005
6 pages, 5 figures, Revtex4.
Aiello, Matias   +2 more
openaire   +5 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

The Einstein–Dirac–Maxwell equations: Black hole solutions [PDF]

open access: yesMethods and Applications of Analysis, 2001
19 pages, LaTeX, 2 figures, to appear in the Proceedings of the IMS Conference on Differential Equations in Mechanics, Chinese University of Hong Kong, June ...
Finster, F., Smoller, J. A., Yau, S.-T.
openaire   +3 more sources

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Absorption by stringy black holes

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We investigate the absorption of planar massless scalar waves by a charged rotating stringy black hole, namely a Kerr–Sen black hole. We compute numerically the absorption cross section and compare our results with those of the Kerr–Newman black hole, a ...
Sérgio V. M. C. B. Xavier   +2 more
doaj   +1 more source

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