搜索结果: 1-10 共查到“高能物理学其他学科 Gravity”相关记录10条 . 查询时间(0.218 秒)
Mutated hybrid inflation in $f(R,{\Box}R)$-gravity
Mutated hybrid inflation High Energy Physics
2010/12/23
A new hybrid inflationary scenario in the context of $f(R,{\Box}R)$-gravity is proposed. Demanding the waterfall field to 'support the potential from below' [unlike the original proposal by Stewart i...
Inhomogeneous fluid flows which become supersonic are known to produce acoustic analogs of ergoregions and horizons. This leads to Hawking-like radiation of phonons with a temperature essentially give...
Cosmic acceleration and the challenge of modifying gravity
Cosmic acceleration modifying gravity
2010/12/24
briefly discuss the challenges presented by attempting to modify general relativity to obtain an explanation for the observed accelerated expansion of the universe. Foremost among these are the quest...
Numerical approach to SUSY quantum mechanics and the gauge/gravity duality
SUSY quantum mechanics the gauge/gravity duality
2011/1/7
We demonstrate that Monte-Carlo simulation is a practical tool to study nonperturbative aspects of supersymmetric quantum mechanics. As an example we study D0-brane quantum mechanics in the context of...
Stability of cosmological solutions in F(R) Horava-Lifshitz gravity
cosmological solutions F(R) Horava-Lifshitz gravity
2010/12/23
At the present paper, it is studied cosmological solutions and its stability in the frame of F(R) Horava-Lifshitz gravity. The perturbations around general spatially flat FRW solutions are analyzed a...
More on the dilatonic Einstein-Gauss-Bonnet gravity
dilatonic Einstein-Gauss-Bonnet gravity High Energy Physics
2010/12/23
Einstein-Gauss-Bonnet gravity coupled to a dynamical dilaton is examined from the viewpoint of Einstein's equivalence principle. We point out that the usual frame change that applies to the action wit...
Surface Layers in the Gravity/Hydrodynamics Correspondence
Surface Layers the Gravity/Hydrodynamics Correspondence
2010/12/24
I review the AdS/hydrodynamics correspondence, which provides a 1-1 map between large wavelength features of AdS black branes and conformal fluid flows. In this thesis I consider boundaries between n...
On the Bogomol'nyi bound in Einstein-Maxwell-dilaton gravity
Bogomol'nyi bound Einstein-Maxwell-dilaton gravity
2010/12/22
It has been shown that the Einstein-Maxwell-dilaton theory allows a Bogomol'nyi-type inequality for an arbitrary dilaton coupling constant $\alpha$, and that the bound is saturated if and only if the...
We consider Higgs massive gravity [1,2] and investigate whether a nonlinear ghost in this theory can be avoided. We show that although the theory considered in [10,11] is ghost free in the decoupling ...
Quantum theory, noncommutative gravity, and the cosmological constant problem
Quantum theory noncommutative gravity cosmological constant problem
2010/4/13
The cosmological constant problem is principally concerned with trying to understand how the zero-point energy of quantum fields contributes to gravity. Here we take the approach that by addressing a ...