U
Ugo Moschella
Researcher at University of Insubria
Publications - 115
Citations - 8002
Ugo Moschella is an academic researcher from University of Insubria. The author has contributed to research in topics: De Sitter universe & Quantum field theory. The author has an hindex of 31, co-authored 112 publications receiving 7536 citations. Previous affiliations of Ugo Moschella include University of Milano-Bicocca & Institut des Hautes Études Scientifiques.
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An Alternative to quintessence
TL;DR: In this paper, the authors consider a FRW cosmological model with an exotic fluid known as Chaplygin gas and show that the resulting evolution of the universe is not in disagreement with the current observation of cosmic acceleration.
Journal ArticleDOI
An alternative to quintessence
TL;DR: In this paper, the authors consider a FRW cosmological model with an exotic fluid known as Chaplygin gas and show that the resulting evolution of the universe is not in disagreement with the current observation of cosmic acceleration.
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Can the Chaplygin gas be a plausible model for dark energy
TL;DR: In this article, two cosmological models representing the flat Friedmann universe filled with a Chaplygin fluid, with or without dust, are analyzed in terms of the recently proposed ''statefinder'' parameters.
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Tachyons, scalar fields, and cosmology
TL;DR: In this paper, the role of tachyon fields in cosmology as compared to the well-established use of minimally coupled scalar fields is investigated, and a specific one-parameter family of tachyonic models based on a perfect fluid mixed with a positive cosmological constant is studied.
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Two-point functions and quantum fields in de sitter universe
Jacques Bros,Ugo Moschella +1 more
TL;DR: In this article, a theory of general two-point functions and generalized free fields in d-dimensional de Sitter space-time is presented, which closely parallels the corresponding Minkowskian theory.