Browsing 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences by Author "Padilla, A."
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Article
The dark energy cosmic clock: A new way to parametrise the equation of state
Tarrant, E. R. M.; Copeland, E. J.; Padilla, A.; Skordis, C. (2013)We propose a new parametrisation of the dark energy equation of state, which uses the dark energy density, Ωe as a cosmic clock. We expand the equation of state in a series of orthogonal polynomials, with Ωe as the expansion ...
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Article
Modified gravity and cosmology
Clifton, T.; Ferreira, P. G.; Padilla, A.; Skordis, C. (2012)In this review we present a thoroughly comprehensive survey of recent work on modified theories of gravity and their cosmological consequences. Amongst other things, we cover General Relativity, scalar-tensor, Einstein-æther, ...
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Article
The Parametrized Post-Newtonian-Vainshteinian formalism
Avilez-Lopez, A.; Padilla, A.; Saffin, P. M.; Skordis, C. (2015)Light degrees of freedom that modify gravity on cosmological scales must be ''screened on solar system scales in order to be compatible with data. The Vainshtein mechanism achieves this through a breakdown of classical ...