Results 21 to 30 of about 22,622 (206)
Nuclear Physics B, 2009 We obtain a large class of smooth Lorentzian p-brane wormholes in supergravities in various dimensions. They connect two asymptotically flat spacetimes. In cases where there is no dilaton involved in the solution, the wormhole can connect an AdS_n\times S^m in one asymptotic region to a flat spacetime in the other. We obtain explicit examples for (n,m)=
Bergman, A. +3 more
openaire +2 more sources
On a Class of Harko-Kovacs-Lobo Wormholes
Universe, 2022 The Harko, Kovács, and Lobo wormhole (HKLWH) metric contains two free parameters: one is the wormhole throat r0, and the other is a dimensionless deviation parameter γ with values ...
Ramis Kh. Karimov +2 more
doaj +1 more source
Competition Is the Underlying Mechanism Controlling Viscous Fingering and Wormhole Growth
Geophysical Research Letters, 2020 Viscous fingering and wormhole growth are complex nonlinear unstable phenomena. We view both as the result of competition for water in which the capacity of an instability to grow depends on its ability to carry water.
Yoar Cabeza +2 more
doaj +1 more source
Exact solutions of charged wormhole [PDF]
, 2001 In this paper, the backreaction to the traversable Lorentzian wormhole spacetime by the scalar field or electric charge is considered to find the exact solutions.
A. Agnese +10 more
core +3 more sources
Dilatonic wormholes: construction, operation, maintenance and collapse to black holes [PDF]
, 2001 The CGHS two-dimensional dilaton gravity model is generalized to include a ghost Klein-Gordon field, i.e. with negative gravitational coupling. This exotic radiation supports the existence of static traversible wormhole solutions, analogous to Morris ...
A. Einstein +18 more
core +2 more sources
Quantum Gravity Correction to Hawking Radiation of the 2+1-Dimensional Wormhole
Advances in High Energy Physics, 2020 We carry out the Hawking temperature of a 2+1-dimensional circularly symmetric traversable wormhole in the framework of the generalized uncertainty principle (GUP).
Ganim Gecim, Yusuf Sucu
doaj +1 more source
Traversable wormhole solutions in f(R) gravity via Karmarkar condition
European Physical Journal C: Particles and Fields, 2020 Motivated by recent proposals of possible wormhole shape functions, we construct a wormhole shape function by employing the Karmarkar condition for static traversable wormhole geometry.
M. Farasat Shamir, I. Fayyaz
doaj +1 more source
A MODIFIED AODV PROTOCOL TO MITIGATE COMBINED IMPACT OF MULTIPLE ATTACKS IN MANET [PDF]
Proceedings on Engineering Sciences, 2023 Since past two decades MANET researchers have focused on providing security solution to MANET to protect them from various network attacks. Most of the recent security approaches are restricted to address specific attacks only.
Monika Dangore , Hare Ram Sah
doaj +1 more source
String Supported Wormhole Spacetimes and Causality Violations [PDF]
, 1996 We construct a static axisymmetric wormhole from the gravitational field of two Schwarzschild particles which are kept in equilibrium by strings (ropes) extending to infinity.
C. Barrabes +10 more
core +5 more sources
Model-independent traversable wormholes from baryon acoustic oscillations
, 2023 In this paper, we investigate the model-independent traversable wormholes from baryon acoustic oscillations. Firstly, we place the statistical constraints on the average dark energy equation of state $\omega_{av}$ by only using BAO data.
Wang, Deng
core +1 more source