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The Cosmological Constant in the Quantum Multiverse
Cosmological Constant Quantum Multiverse
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2011/10/17
Recently, a new framework for describing the multiverse has been proposed which is based on the principles of quantum mechanics. The framework allows for well-defined predictions, both regarding globa...
The Poincare Conjecture and the Cosmological Constant
Manifold Deformations Poincar Conjecture Cos- mological Constant
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2011/10/17
The concept of deformation of Riemannian geometry is reviewed, with applications to gravitation and cosmology. Starting with an analysis of the cosmological constant problem, it is shown that space-ti...
Beyond Einstein: Cosmological Tests of Model Independent Modified Gravity
Beyond Einstein: Cosmological Model Independent Modified Gravity
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2011/10/8
Model-independent parametrisations of modified gravity have attracted a lot of attention over the past few years; numerous combinations of experiments and observables have been suggested to constrain ...
Nonlocal gravity and its cosmological manifestations
Nonlocal gravity cosmological manifestations
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2011/10/18
We suggest a class of generally covariant ghost-free nonlocal gravity models generating de Sitter or Anti-de Sitter background with an arbitrary value of the effective cosmological constant and featur...