Zobrazeno 1 - 10
of 1 144
pro vyhledávání: '"Pedro, Francisco"'
We carefully analyse the challenges posed by the construction of type IIB chiral global embeddings of Fibre Inflation with $\overline{ \rm D3}$ uplift to a de Sitter vacuum. We present an explicit example involving an $h^{1,1}=4$ Calabi-Yau manifold
Externí odkaz:
http://arxiv.org/abs/2412.08723
In this paper we study higher-derivative supersymmetric effective field theories focusing on the systematic procedure for the elimination of ghosts from the spectrum. Particular attention is paid to the auxiliary fields, for which the higher-derivati
Externí odkaz:
http://arxiv.org/abs/2409.08984
We present a type IIB 4D string model with stabilised moduli which is able to describe the history of the universe from inflation to quintessence. The underlying Calabi-Yau volume is controlled by two moduli which are stabilised by perturbative effec
Externí odkaz:
http://arxiv.org/abs/2407.03405
We examine the descent via membrane nucleation through a landscape of vacua where the cosmological constant is given by a combination of four-form fluxes. It has been shown that this descent can be slowed exponentially for very low curvature vacua cl
Externí odkaz:
http://arxiv.org/abs/2404.02961
Autor:
Casadio, Roberto, Chataignier, Leonardo, Kamenshchik, Alexander Yu., Pedro, Francisco G., Tronconi, Alessandro, Venturi, Giovanni
Publikováno v:
Annals of Physics 470, 169783 (2024)
We make a conceptual overview of a particular approach to the initial-value problem in canonical gauge theories. We stress how the first-class phase-space constraints may be relaxed if we interpret them as fixing the values of new degrees of freedom.
Externí odkaz:
http://arxiv.org/abs/2402.12437
We consider a wide class of four-dimensional effective field theories in which gravity is coupled to multiple four-forms and their dual scalar fields, with membrane sources charged under the corresponding three-form potentials. Four-form flux, quanti
Externí odkaz:
http://arxiv.org/abs/2303.17723
Autor:
Cicoli, Michele, Licheri, Matteo, Mahanta, Ratul, McDonough, Evan, Pedro, Francisco G., Scalisi, Marco
Early Dark Energy (EDE) is a promising model to resolve the Hubble Tension, that, informed by Cosmic Microwave Background data, features a generalization of the potential energy usually associated with axion-like particles. We develop realizations of
Externí odkaz:
http://arxiv.org/abs/2303.03414
Autor:
Areli Idalia Matias-Oregán, Rodolfo Figueroa-Brito, Francisco Rodríguez-González, Jonathan Muthuswamy Ponniah, Miguel Ángel Valera-Pérez, Pedro Francisco Rodríguez-Espinosa
Publikováno v:
Air, Soil and Water Research, Vol 17 (2024)
Trace metal enrichments in soil and native maize ( Zea mays L.) in Tehuacán-Cuicatlán Biosphere Reserve was analyzed due to its direct relation with food security. pH and organic matter (OM) content were obtained in soil, concentrations trace metal
Externí odkaz:
https://doaj.org/article/643397969bb84c5e90d2bb62f7cd7740
