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Inflation and the cosmological constant
general relativity infl ationary universe cosmological constant
2011/10/14
A particular compensation-type solution of the main cosmological constant problem has been proposed recently, with two massless vector fields dynamically canceling an arbitrary cosmological constant \...
Notes on the Quantization of FRW Model in the Presence of a Cosmological Constant and Radiation
FRW Model a Cosmological Constant
2010/10/18
In the present work, we use the formalism of quantum general relativity in order to quantize a Friedmann-Robertson-Walker model in the presence of a negative cosmological constant and radiation. The m...
Neutrino Mixing as a Source for Cosmological Constant
Neutrino Mixing Cosmological Constant
2010/10/14
We report on recent results showing that neutrino mixing may lead to a non-zero contribution to the cosmological constant. This contribution is of a completely different nature with respect to the usu...