Results 91 to 100 of about 121,346 (292)

Rotating regular black hole solution [PDF]

Physical Review D, 2014
Based on the Newman-Janis algorithm the Ayon-Beato-Garcia spacetime metric of the regular spherically symmetric, static and charged black hole has been converted into rotational form. It is shown that the derived solution for rotating regular black hole is regular and the critical value of the electric charge $Q$ for which two horizons merge into one ...
Toshmatov, Bobir, Ahmedov, Bobomurat, Abdujabbarov, Ahmadjon, Stuchlik, Zdenek   +3 more
openaire   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Non-linearly scalarized supermassive black holes

European Physical Journal C: Particles and Fields
In this study, we investigate a nonlinear mechanism driving the formation of scalarized rotating black holes within a scalar-Gauss–Bonnet gravity framework that includes an additional squared Gauss–Bonnet term.
Shoupan Liu, Yunqi Liu, Yan Peng, Cheng-Yong Zhang   +3 more
doaj   +1 more source

Pair creation of rotating black holes [PDF]

Physical Review D, 2014
13 pages, v2: typos corrected and reference ...
openaire   +6 more sources

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

Testing the weak cosmic censorship conjecture in short haired black holes

European Physical Journal C: Particles and Fields
The weak cosmic censorship conjecture is a hypothesis about the nature of event horizons and singularities during the formation of black holes. It posits that singularities are always enveloped by the event horizons of black holes, thereby preventing ...
Min Zhao, Meirong Tang, Zhaoyi Xu
doaj   +1 more source

Supersymmetry of Anti-de Sitter Black Holes

, 1999
We examine supersymmetry of four-dimensional asymptotically anti-de Sitter (AdS) dyonic black holes in the context of gauged N=2 supergravity. Our calculations concentrate on black holes with unusual topology and their rotating generalizations, but we ...
Bañados, Brill, Cai, Chamseddine, Chamseddine, Das, Dietmar Klemm, Ferrara, Fradkin, Freedman, Friedmann, Gibbons, Gibbons, Hawking, Horowitz, Huang, Huang, Klemm, Klemm, Kostelecký, Larsen, Lemos, Lemos, Lemos, Maldacena, Mann, Mann, Marco M. Caldarelli, Plebanski, Romans, Tod, Vanzo, Witten, Åminneborg   +33 more
core   +1 more source

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Charged black rings at large D

Journal of High Energy Physics, 2017
We study the charged slowly rotating black holes in the Einstein-Maxwell theory in the large dimensions (D). By using the 1/D expansion in the near regions of the black holes we obtain the effective equations for the charged slowly rotating black holes ...
Bin Chen, Peng-Cheng Li, Zi-zhi Wang
doaj   +1 more source

On regular rotating black holes [PDF]

, 2017
The final publication is available at Springer via 10.1007/s10714-016-2166-7Different proposals for regular rotating black hole spacetimes have appeared recently in the literature.
Fayos Vallés, Francisco, Torres Herrera, Ramon   +1 more
core   +2 more sources