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FRW and domain walls in higher spin gravity
(2018)
We present exact solutions to Vasiliev's bosonic higher spin gravity equations in four dimensions with positive and negative cosmological constant that admit an interpretation in terms of domain walls, quasi-instantons and ...
Higher-order Lorentz-invariance violation, quantum gravity and fine-tuning
(Elsevier, 2015-06)
The issue of Lorentz fine-tuning in effective theories containing higher-order operators is studied. To this end, we focus on the Myers-Pospelov extension of QED with dimension-five operators in the photon sector and ...
Evolution of complexity following a quantum quench in free field theory
(2018-06-01)
Using a recent proposal of circuit complexity in quantum field theories introduced by Jefferson and Myers, we compute the time evolution of the complexity following a smooth mass quench characterized by a time scale δt in ...
Deeper discussion of Schrodinger invariant and logarithmic sectors of higher-curvature gravity
(AMER PHYSICAL SOC, 2012)
Cosmological models in semi-classical and higher order gravitational theories
(Springer, 2000-03)
We have studied semiclassical models with a classical scalar field, giving exact solutions in the cases of a λ φ4 and an exponential self-interaction potential, in the last case we have also studied the influence of the ...
Natural Inflation on the brane with a TeV-scale gravity: parameter constraints after Planck 2015
(World Scientific, 2017-06)
In the present work, we have studied Natural Inflation (NI) in the framework of the Randall-Sundrum II (RS-II) brane model in the light of the latest Planck results. Adopting the Randall-Sundrum fine-tuning, the model is ...
Embeddings of the “New Massive Gravity”
(2016-07-01)
Here we apply different types of embeddings of the equations of motion of the linearized “New Massive Gravity” in order to generate alternative and even higher-order (in derivatives) massive gravity theories in D= 2 + 1. ...
Megathrust Slip Behavior for Great Earthquakes Along the Sumatra-Andaman Subduction Zone Mapped From Satellite GOCE Gravity Field Derivatives
(Frontiers Media, 2021-02)
During the last two decades, space geodesy allowed mapping accurately rupture areas, slip distribution, and seismic coupling by obtaining refined inversion models and greatly improving the study of great megathrust ...