搜索结果: 1-15 共查到“知识库 理学 Brane”相关记录32条 . 查询时间(0.046 秒)
Fully localized brane intersections: The plot thickens
Film supergravity coupling bulk gravity system
2014/12/22
We study fully localized Bogomol’nyi-Prasad-Sommerfield brane solutions in classical supergravity using a perturbative approach to the coupled Born-Infeld or bulk supergravity system. We derive first ...
Spin of the M2-brane and spin-spin interactions via probe techniques
Solitary wave rotate super gravity quantitative fermionic zero mode
2014/12/22
The 256-dimensional M2-brane multiplet contains solitons of many different intrinsic spins. Using the broken supersymmetry transformations of the M2-brane, we find supergravity solutions which explici...
Randall-Sundrum limit of f(R) brane-world models
Randall-Sundrum limit brane-world models
2011/10/17
By setting some special boundary conditions in the variational principle we obtain junction conditions for the five-dimensional $f(R)$ gravity which in the Einstein limit $f(R)\rightarrow R$ transform...
In this paper we derive, directly from the Nambu-Goto action, the relevant components of the acceleration of cosmological featureless $p$-branes, extending previous analysis based on the field theory ...
Inflation with improved D3-brane potential and the fine tunings associated with the model
improved D3-brane potential the fine tunings associated
2011/1/13
We investigate brane-antibrane inflation in a warped deformed conifold background that includes contributions to the potential arising from imaginary anti-self-dual (IASD) fluxes including the term wi...
D1-brane in Constant R-R 3-form Flux and Nambu Dynamics in String Theory
D1-brane Constant R-R 3-form Flux Nambu Dynamics String Theory
2010/12/23
We consider D1-string in a constant R-R 3-form flux background and analyze its low energy limit. The leading order low energy theory has reparametrization symmetry and is a generalization of an earli...
Ultraviolet singularities in classical brane theory
Ultraviolet singularities classical brane theory
2010/12/23
We construct for the first time an energy-momentum tensor for the electromagnetic field of a p-brane in arbitrary dimensions, entailing finite energy-momentum integrals. The construction relies on di...
Brane resolution in heterotic theory through BF term
Brane resolution heterotic theory BF term
2010/12/23
We have studied the resolution of a naked singularity of a conifold in heterotic theory by a BF topological defect living in a 5-brane. The singularity is removed due to Chern-Simons action that chang...
Five-Brane Superpotentials, Blow-Up Geometries and SU(3) Structure Manifolds
Five-Brane Superpotentials Blow-Up Geometries SU(3) Structure Manifolds
2010/12/24
We investigate the dynamics of space-time filling five-branes wrapped on curves in heterotic and orientifold Calabi-Yau compactifications. We first study the leading N=1 scalar potential on the infini...
De Sitter brane-world, localization of gravity, and the cosmological constant
De Sitter brane-world localization of gravity the cosmological constant
2010/12/24
Cosmological models with a de Sitter 3-brane embedded in a five-dimensional de Sitter spacetime (dS5) give rise to a finite 4D Planck mass similar to that in Randall-Sundrum (RS) brane-world models in...
Cosmology in p-brane systems
Cosmology p-brane systems
2010/12/23
We present time dependent solutions in the higher-dimensional gravity which are related to supergravity in the particular cases. Here we consider p-branes with a cosmological constant and the interse...
A Note on Computations of D-brane Superpotential
D-brane Superpotential High Energy Physics
2010/12/23
We develop some computational methods for the integrals over the 3-chains on the compact Calabi-Yau 3-folds that plays a prominent role in the analysis of the topological B-model in the context of the...
Three Roads to Probe-Brane Superconductivity
Probe-Brane Superconductivity High Energy Physics
2010/12/24
We study a defect system of two parallel D5 probe branes in a large-N_c D3 background. Using the non-abelian DBI action, we study three different fields that can give rise to a superconducting phase t...
AdS$_3$ and AdS$_2$ Magnetic Brane Solutions
Magnetic Brane Solutions High Energy Physics
2010/12/23
We investigate AdS$_3$ and AdS$_2$ magnetic brane solutions within the consistent truncation of AdS$_5 \times S^5$ supergravity. The AdS$_3$ solution extends earlier work by allowing a general embeddi...
The curvaton scenario in Brane cosmology: model parameters and their constraints
The curvaton scenario Brane cosmology model parameters
2010/12/23
We have studied the curvaton scenario in brane world cosmology in an intermediate inflationary scenario. This approach has allowed us to find some constraints on different parameters that appear in th...