Results 11 to 20 of about 358,962 (67)

Generation of Generalized-Gauss Laser Beams via a Spatial Light Modulator [PDF]

open access: yes, 2018
Generalized-Gauss laser beams can be described as a continuous transition between the well-known Hermite-Gauss (HG) and Laguerre-Gauss (LG) laser beams.
Conry Young, Jessica P, Dix, Samantha
core   +3 more sources

The Gauss map of minimal surfaces in the Heisenberg group [PDF]

open access: yes, 2010
We study the Gauss map of minimal surfaces in the Heisenberg group $\mathrm{Nil}_3$ endowed with a left-invariant Riemannian metric. We prove that the Gauss map of a nowhere vertical minimal surface is harmonic into the hyperbolic plane $\mathbb{H}^2 ...
Daniel, Benoît
core   +2 more sources

Generalized Weyl solutions in d=5 Einstein-Gauss-Bonnet theory: the static black ring [PDF]

open access: yes, 2009
We argue that the Weyl coordinates and the rod-structure employed to construct static axisymmetric solutions in higher dimensional Einstein gravity can be generalized to the Einstein-Gauss-Bonnet theory. As a concrete application of the general formalism,
A Padilla   +49 more
core   +1 more source

Propagation of generalized vector Helmholtz-Gauss beams through paraxial optical systems [PDF]

open access: yes, 2006
We introduce the generalized vector Helmholtz-Gauss (gVHzG) beams that constitute a general family of localized beam solutions of the Maxwell equations in the paraxial domain.
Bandres, Miguel A.   +3 more
core   +1 more source

Scalar field evolution in Gauss-Bonnet black holes

open access: yes, 2005
It is presented a thorough analysis of scalar perturbations in the background of Gauss-Bonnet, Gauss-Bonnet-de Sitter and Gauss-Bonnet-anti-de Sitter black hole spacetimes. The perturbations are considered both in frequency and time domain.
C. Molina   +5 more
core   +1 more source

Holographic Superconductors with various condensates in Einstein-Gauss-Bonnet gravity

open access: yes, 2010
We study holographic superconductors in Einstein-Gauss-Bonnet gravity. We consider two particular backgrounds: a $d$-dimensional Gauss-Bonnet-AdS black hole and a Gauss-Bonnet-AdS soliton.
de Oliveira, Jeferson   +4 more
core   +1 more source

Shadows and photon spheres with spherical accretions in the four-dimensional Gauss-Bonnet black hole

open access: yes, 2020
We investigate the shadows and photon spheres of the four-dimensional Gauss-Bonnet black hole with the static and infalling spherical accretions. We show that for both cases, the shadow and photon sphere are always present.
Zeng, Xiao-Xiong   +2 more
core   +1 more source

Kerr-Gauss-Bonnet Black Holes: An Analytical Approximation

open access: yes, 2008
Gauss-Bonnet gravity provides one of the most promising frameworks to study curvature corrections to the Einstein action in supersymmetric string theories, while avoiding ghosts and keeping second order field equations.
A. Barrau   +19 more
core   +3 more sources

Inner structure of Gauss-Bonnet-Chern Theorem and the Morse theory

open access: yes, 2001
We define a new one form H^A based on the second fundamental tensor H^abA, the Gauss-Bonnet-Chern form can be novelly expressed with this one-form. Using the phi-mapping theory we find that the Gauss-Bonnet-Chern density can be expressed in terms of the ...
Duan, Yi-shi, Zhang, Peng-ming
core   +1 more source

Pseudo-spherical submanifolds with 1-type pseudo-spherical Gauss map

open access: yes, 2015
In this work, we study the pseudo-Riemannian submanifolds of a pseudo-sphere with 1-type pseudo-spherical Gauss map. First, we classify the Lorentzian surfaces in a 4-dimensional pseudo-sphere $\mathbb{S}^4_s(1)$ with index s, $s=1, 2$, and having ...
Bektaş, Burcu   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy