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astro-ph2005★ 41 cited
Scaling solutions in scalar-tensor cosmologies
Valeria Pettorino, Carlo Baccigalupi, Francesca Perrotta
The possibility of a connection between dark energy and gravity through a direct coupling in the Lagrangian of the underlying theory has acquired an increasing interest due to the…
astro-ph2005★ 59 cited
Extended quintessence with an exponential coupling
Valeria Pettorino, Carlo Baccigalupi, Gianpiero Mangano
We study a class of extended quintessence cosmologies where the scalar field playing the role of the dark energy is exponentially coupled to the Ricci scalar. We find that the dyna…