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Large-scale model of the axisymmetric dynamo with feedback effects
(Springer, 2019-01-29)
A dynamo model is presented, based on a previously introduced kinematic model, in which the effect of the magnetic field on the mass flow through the Lorentz force is included. Given the base mass flow corresponding to the ...
Dynamical mean field theory of an effective three-band model for NaxCoO2
(American Physical Society, 2009-01)
We derive an effective Hamiltonian for highly correlated t2g states centered at the Co sites of NaxCoO2. The essential ingredients of the model are an O mediated hopping, a trigonal crystal-field splitting, and on-site ...
Fermion helicity flip and fermion oscillation induced by dynamical torsion field
(IOP Publishing, 2019-07)
We show that in theories of gravitation based in affine geometries the torsion field, that takes a dynamical character, produces the non-conservation of the helicity of fermion particles (spin precession). Such effect is ...
Modelling electromagnetic responses of 2-D structures due to spatially non-uniform inducing fields. Analysis of magnetotelluric source effects at coastlines
(Wiley Blackwell Publishing, Inc, 2003-10)
In previous works, we presented 2-D and 3-D magnetotelluric modelling methods based on Rayleigh-Fourier expansions. These methods are an alternative to finite-element and finite-difference techniques and are especially ...
Spatio-Temporal Nitrogen Fertilizer Response in Maize: Field Study and Modeling Approach
(American Society of Agronomy, 2016)
Maize (Zea mays L.) yield and its response to nitrogen (N) are affected by the spatial variability of the interaction between weather, management, and soil properties. The objectives of this study were (i) to evaluate the ...
Determination of the Local Electric Field at Au/SAM Interfaces Using the Vibrational Stark Effect
(American Chemical Society, 2017-10)
A comprehensive understanding of physical and chemical processes at biological membranes requires the knowledge of the interfacial electric field which is a key parameter for controlling molecular structures and reaction ...
Neutral and charged pion properties under strong magnetic fields in the NJL model
(American Physical Society, 2019-09-16)
In the framework of the Nambu-Jona-Lasino (NJL) model, we study the effect of an intense external uniform magnetic field on neutral and charged pion masses and decay form factors. In particular, the treatment of charged ...
Nonclassical effects in a highly nonlinear generalized homogeneous Dicke model
(Academic Press Inc Elsevier Science, 2011-09)
An intensity dependent nonlinear coupling model of N two-level atoms (generalized Dicke model) interacting dispersively with a bimodal cavity field via two-photon transitions is investigated in a scenario where the rotating ...