Results 71 to 80 of about 121,346 (292)

Thermal geometries and the Joule–Thomson expansion of modified charged and slowly rotating black holes

open access: yesFrontiers in Physics, 2023
Thermodynamics of charged and slowly rotating black holes in 4D Gauss–Bonnet gravity has attracted a great deal of attention due to its intrinsic complications and rich phase structures.
Muhammad Yasir   +3 more
doaj   +1 more source

Rotating Black Holes on Kaluza-Klein Bubbles

open access: yes, 2007
Using the solitonic solution generating techniques, we generate a new exact solution which describes a pair of rotating black holes on a Kaluza-Klein bubble as a vacuum solution in the five-dimensional Kaluza-Klein theory.
H. Stephani   +6 more
core   +1 more source

Statistical Description of Rotating Kaluza-Klein Black Holes [PDF]

open access: yes, 2007
We extend the recent microscopic analysis of extremal dyonic Kaluza-Klein (D0-D6) black holes to cover the regime of fast rotation in addition to slow rotation.
Emparan, Roberto, Maccarrone, Alessandro
core   +4 more sources

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

open access: yesAdvanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park   +3 more
wiley   +1 more source

Slowly rotating charged black holes in anti-de Sitter third order Lovelock gravity

open access: yes, 2010
In this paper, we study slowly rotating black hole solutions in Lovelock gravity (n=3). These exact slowly rotating black hole solutions are obtained in uncharged and charged cases, respectively.
A. Chamblin   +69 more
core   +1 more source

Grazing Collisions of Black Holes via the Excision of Singularities [PDF]

open access: yes, 2000
We present the first simulations of non-headon (grazing) collisions of binary black holes in which the black hole singularities have been excised from the computational domain. Initially two equal mass black holes $m$ are separated a distance $\approx10m$
A. Abramovici   +44 more
core   +3 more sources

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Weak cosmic censorship conjecture and black hole shadow for black hole with generalized uncertainty principle

open access: yesEuropean Physical Journal C: Particles and Fields
Based on string theory, loop quantum gravity, black hole physics, and other theories of quantum gravity, physicists have proposed generalized uncertainty principle (GUP) modifications.
Meirong Tang
doaj   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

open access: yesAdvanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon   +4 more
wiley   +1 more source

Quasinormal modes of rotating black holes in shift-symmetric Einstein-scalar-Gauss–Bonnet theory

open access: yesEuropean Physical Journal C: Particles and Fields
We employ a recently developed spectral method to obtain the spectrum of quasinormal modes of rapidly rotating black holes in alternative theories of gravity and apply it to the black holes of shift-symmetric Einstein-scalar-Gauss–Bonnet theory.
Fech Scen Khoo   +3 more
doaj   +1 more source

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