Results 41 to 50 of about 69,028 (315)
Modified gravity one-loop partition function
European Physical Journal C: Particles and Fields, 2018 The one-loop partition function of the $$f(R,R_{\mu \nu }R^{\mu \nu })$$ f(R,RμνRμν) gravity theory is obtained around $$\hbox {AdS}_4$$ AdS4 background.
Shahab Shahidi +3 more
doaj +1 more source
Charged gravastars in modified gravity [PDF]
Physical Review D, 2019 23 pages, 6 figures, final version to appear in Physical Review ...
Yousaf, Z. +3 more
openaire +2 more sources
Stability in generalized Modified Gravity [PDF]
AIP Conference Proceedings, 2009 The stability issue of a large class of modified gravitational models is discussed with particular emphasis to de Sitter solutions. Three approaches are briefly presented and the generalization to more general cases is mentioned.
S. Zerbini, Shaaban Khalil
openaire +5 more sources
Born–Infeld-Like Modified Gravity [PDF]
International Journal of Theoretical Physics, 2013 RevTex, 5 pages, one figure, minor corrections, references added, journal version, accepted in ...
openaire +3 more sources
Dark Energy versus Modified Gravity [PDF]
Physical Review Letters, 2007 There is now strong observational evidence that the expansion of the universe is accelerating. The standard explanation invokes an unknown "dark energy" component. But such scenarios are faced with serious theoretical problems, which has led to increased interest in models where instead General Relativity is modified in a way that leads to the observed
Kunz, Martin, Sapone, Domenico
openaire +4 more sources
, 2018 We present a new parameterization for the equation of state (EoS) $ _X=P_X/ _X$, which can reproduce a $f(R)$-like evolution with a precision between $[0.5\%-0.8\%]$ over the numerical solutions. Also, our proposal can render a variety of popular $f(R)$ models that are considered as viable candidates for the cosmic late time acceleration.
Jaime, Luisa G. +2 more
openaire +2 more sources
GRAVITY FROM A MODIFIED COMMUTATOR [PDF]
International Journal of Modern Physics D, 2005 We show that a suitably chosen position-momentum commutator can elegantly describe many features of gravity, including the IR/UV correspondence and dimensional reduction ("holography"). Using the most simplistic example based on dimensional analysis of black holes, we construct a commutator which qualitatively exhibits these novel properties of ...
openaire +3 more sources
, 2013 added references; made some clarifications; 8 ...
Dimitrijevic, Ivan +3 more
openaire +2 more sources
Modified gravity and the CMB [PDF]
Physical Review D, 2012 15 pages, 10 figures, published ...
Brax, Philippe, Davis, Anne-Christine
openaire +2 more sources
FEBS Open Bio, EarlyView.This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc +8 more
wiley +1 more source