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Axionic black branes with conformal coupling
Adolfo Cisterna, Cristián Erices, Xiao-Mei Kuang +1
We find neutral and charged black branes solutions with axion fields in the context of a conformally coupled gravitational theory in four dimensions. These solutions describe AdS b…
Axionic black branes in the k-essence sector of the Horndeski model
Adolfo Cisterna, Mokhtar Hassaine, Julio Oliva +1
We construct new black brane solutions in the context of Horndeski gravity, in particular in its K-essence sector. These models are supported by axion scalar fields that depend onl…
Inflationary quasi-scale invariant attractors
Massimiliano Rinaldi, Luciano Vanzo, Sergio Zerbini +1
In a series of recent papers Kallosh, Linde, and collaborators have provided a unified description of single-field inflation with several types of potentials, ranging from power la…
Particle production and transplanckian problem on the non-commutative plane
Massimiliano Rinaldi
We consider the coherent state approach to non-commutativity, and we derive from it an effective quantum scalar field theory. We show how the non-commutativity can be taken in acco…
A minimal length versus the Unruh effect
Piero Nicolini, Massimiliano Rinaldi
In this Letter we study the radiation measured by an accelerated detector, coupled to a scalar field, in the presence of a fundamental minimal length. The latter is implemented by…
Self-T-Dual Brane Cosmology
Massimiliano Rinaldi
We show how T-duality can be implemented with brane cosmology. As a result, we obtain a smooth bouncing cosmology with features similar to the ones of the pre-Big Bang scenario. Al…