401 citations · 1k across the 11 of their papers we have counts for
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Characterization of wormhole space-times supported by a covariant action-dependent Lagrangian theory
Ismael Ayuso, Ruth Lazkoz
In this work, we undertake an analysis of new wormhole solutions within an action-dependent Lagrangian framework. These geometries can be traversable and supported by a positive en…
Wormhole geometries induced by action-dependent Lagrangian theories
Ismael Ayuso, Francisco S. N. Lobo, José P. Mimoso
In this work, we explore wormhole geometries in a recently proposed modified gravity theory arising from a non-conservative gravitational theory, tentatively denoted action-depende…
Extremal cosmological black holes in Horndeski gravity and the anti-evaporation regime
Ismael Ayuso, Diego Sáez-Chillón Gómez
Extremal cosmological black holes are analysed in the framework of the most general second order scalar-tensor theory, the~so-called Horndeski gravity. Such~extremal black holes ar…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
What if Newton's Gravitational Constant was negative?
Ismael Ayuso, José P. Mimoso, Nelson J. Nunes
In this work, we seek a cosmological mechanism that may define the sign of the effective gravitational coupling constant, {\em G}. To this end, we consider general scalar-tensor gr…
Non-minimal scalar-tensor theories
Ismael Ayuso, Jose A. R. Cembranos
We compute the spectrum of scalar models with a general coupling to the scalar curvature. We find that the perturbative states of these theories are given by two massive spin-0 mod…