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Power-law entropy corrected new holographic scalar field models of dark energy
Power-law holographic scalar field models dark energy PLECHDE model
2011/8/11
Abstract: In this work, the PLECHDE model with Granda-Oliveros infrared cutoff is studied and the evolution of dark energy density, deceleration and EoS parameters are calculated. I demonstrate that u...
Power-law entropy-corrected HDE and NADE in Brans-Dicke cosmology
Power-law entropy-corrected HDE Brans-Dicke cosmology
2011/10/13
Considering the power-law corrections to the black hole entropy, which appear in dealing with the entanglement of quantum fields in and out the horizon, the holographic energy density is modified acco...
Hubble's law and faster than light expansion speeds
Hubble's law faster than light expansion speeds
2011/10/14
Naively applying Hubble's law to a sufficiently distant object gives a receding velocity larger than the speed of light. By discussing a very similar situation in special relativity, we argue that Hub...
Violation of the first law of black hole thermodynamics in $f(T)$ gravity
Violation first law black hole thermodynamics $f(T)$ gravity
2011/10/18
We prove that the first law of black hole thermodynamics, $\delta Q=T\delta S$, is violated in $f(T)$ gravity. As a result, there always exists entropy production, which implies that the black hole th...
In chameleon field theories a scalar field can couple to matter with gravitational strength and still evade local gravity constraints due to a combination of self-interactions and the couplings to mat...
A law of motion for spherical shells in special relativity
Relativistic fluid dynamics；Relativistic plasmas
2010/11/15
Self-similar solutions to the problem of a special relativistic law of motion for thin shells of matter are calculated. These solutions represent the special relativistic generalization of momentum co...
Supernova dust for the extinction law in a young infrared galaxy at z = 1
dust extinction — galaxies evolution — galaxies ISM — galaxies starburst — infrared galaxies — supernovae general
2010/11/10
We apply the supernova(SN) extinction curves to reproduce the observed properties of SST J1604+4304 which is a young infrared (IR) galaxy at z ∼ 1. The SN extinction curves used in this work wer...
Laboratory constraints on chameleon dark energy and power-law fields
Cosmology and Extragalactic Astrophysics (astro-ph.CO) General Relativity and Quantum Cosmology (gr-qc) High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph)
2010/12/24
We report results from the GammeV Chameleon Afterglow Search---a search for chameleon particles created via photon/chameleon oscillations within a magnetic field.
GENERALIZED SCHUSTER LAW AND KING’S FORMULA
King’s density formula identical density values
2009/3/26
By varying a particular form of the generalised Schuster density
law (the exponent in the denominator equal to 3
2 ) the authors look for a suitable
substitution for King’s density formula usually ...