scholarly journals A fundamental length as a candidate for dark energy: A DSR inspired FRW spacetime

2008 ◽  
Vol 372 (19) ◽  
pp. 3356-3359 ◽  
Author(s):  
N. Khosravi ◽  
H.R. Sepangi
Keyword(s):  
Dark Energy ◽  
Fundamental Length

scholarly journals QUANTUM THEORY AT PLANCK SCALE, LIMITING VALUES, DEFORMED GRAVITY AND DARK ENERGY PROBLEM

2012 ◽  
Vol 21 (02) ◽  
pp. 1250013 ◽  
Author(s):  
A. E. SHALYT-MARGOLIN
Keyword(s):  
Dark Energy ◽  
Planck Scale ◽  
High Energy ◽  
Einstein Equations ◽  
Heuristic Model ◽  
Energy Problem ◽  
Fundamental Length ◽  
New Interpretation ◽  
Limiting Values ◽  
Thermodynamic Interpretation

Within a theory of the existing fundamental length on the order of Planck's, a high-energy deformation of the General Relativity for the space with horizon has been constructed. On this basis, Markov's work of the early eighties of the last century has been given a new interpretation to show that the heuristic model considered by him may be placed on a fundamental footing. The obtained results have been applied to solving of the dark energy problem, making it possible to frame the following hypothesis: a dynamic cosmological term is a measure of deviation from a thermodynamic identity (the first law of thermodynamics) of the high-energy (Planck's) deformation of Einstein equations for horizon spaces in their thermodynamic interpretation.

Dark energy on firmer footing

Nature ◽  
2010 ◽  
Author(s):  
Eugenie Samuel Reich
Keyword(s):  
Dark Energy

Dark energy probe gets high praise

Nature ◽  
2007 ◽  
Author(s):  
Geoff Brumfiel
Keyword(s):  
Dark Energy

Editorial [Dark Energy and Modified Gravity]

2010 ◽  
Vol 3 (2) ◽  
pp. 12-12
Author(s):  
S. Nojiri ◽  
S. D. Odintsov
Keyword(s):  
Dark Energy ◽  
Modified Gravity

Cosmological constant

2018 ◽  
Author(s):  
Michael Kachelriess
Keyword(s):  
Dark Energy ◽  
Cosmological Constant ◽  
Accelerated Expansion ◽  
Vacuum Fluctuations ◽  
Present Epoch ◽  
Modify Gravity ◽  
Expansion Of The Universe ◽  
The Universe

The contribution of vacuum fluctuations to the cosmological constant is reconsidered studying the dependence on the used regularisation scheme. Then alternative explanations for the observed accelerated expansion of the universe in the present epoch are introduced which either modify gravity or add a new component of matter, dubbed dark energy. The chapter closes with some comments on attempts to quantise gravity.

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