Listar Centro de Física Fundamental (CFF) por título
Mostrando ítems 118-137 de 144
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Scalar field cosmologies: a dynamical systems study
(SABER ULA, 2008-07-02)Scalar field cosmologies: a dynamical systems study (Carot, Jaume; Collinge, Magdalena M.) Abstract Inhomogeneous G2 solutions whose material content can be modelled by a scalar field are considered with a view towards ... -
Scalar field spacetimes
(SABER ULA, 2008-07-02)Scalar field spacetimes (Carot, Jaume; Collinge, Magdalena M.) Abstract Scalar field spacetimes are considered with a view towards their applications in cosmology. Some results existing in the literature are reviewed ... -
See-saw and supersymmetry or exact R-parity
(SABER ULA, 2005-01-06)See-saw and supersymmetry or exact R-parity (Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran) Abstract We show how the renormalizable see-saw mechanism in the context of supersymmetry and ... -
Self-dual spin-3 and 4 theories
(SABER ULA, 2005-01-06)Self-dual spin-3 and 4 theories (Khoudeir, Adel; Aragone, Carlos) Abstract We present self-dual spin-3 and 4 actions using relevant dreibein fields. Since these actions start with a Chern-Simons like kinetic term ... -
Self-gravitating domain walls and the thin-wall limit
(SABER ULA, 2005-05-25)Self-gravitating domain walls and the thin-wall limit Guerrero, Rommel, Melfo, Alejandra; Pantoja, Nelson Abstract We analyse the distributional thin wall limit of self gravitating scalar ... -
Self-similar static solutions admitting a 2-space of constant curvature
(SABER ULA, 2008-07-02)Self-similar static solutions admitting a 2-space of constant curvature (Carot, Jaume; Sintes, A. M.) Abstract A recent result by Haggag and Hajj-Boutros is reviewed within the framework of self-similar spacetimes, ... -
SO(10) theory of R-parity and neutrino mass
(SABER ULA, 2005-01-06)SO(10) theory of R-parity and neutrino mass (Melfo, Alejandra; Aulakh, Charanjit S.; Bajc, Borut; Rasin, Andrija; Senjanovic, Goran) Abstract We study the Higgs sector of a SO(10) grand unified theory which predicts ... -
Soluciones conformemente planas con ecuación de estado no local.
(SABER ULA, 2005-07-04)Soluciones conformemente planas con ecuación de estado no local. (Núñez, Luis; Muñoz S., A.G. .) Abstract A non-local equation of state describes the components of the energy-momentum tensor not only as a function of ... -
Some developments on axial symmetry
(SABER ULA, 2008-07-02)Some developments on axial symmetry (Carot, Jaume) Abstract The definition of axial symmetry in general relativity is reviewed, and some results concerning the geometry in a neighbourhood of the axis are derived. ... -
Sound speeds, cracking and stability of self-gravitating anisotropic compact objects.
(SABER ULA, 2007-06-25)Sound speeds, cracking and stability of self-gravitating anisotropic compact objects. Abstract Using the the concept of cracking we explore the influence of density fluctuations and local anisotropy have on the stability ... -
Spin waves at the ferromagnetic-antiferromagnetic interface
(SABER ULA, 2005-06-06)Spin waves at the ferromagnetic-antiferromagnetic interface Pestana, E., Mata, G. J., Pantoja, N. Abstract We investigate the magnon modes in the neighbourhood of the interface between a ... -
Static anisotropic solutions to Einstein equations with a nonlocal equation of state
(SABER ULA, 2005-04-18)Static anisotropic solutions to Einstein equations with a nonlocal equation of state (Núñez, Luis; Hernández, Hector) Abstract We present a general method to obtain static anisotropic spherically symmetric solutions, ... -
Supersymmetry and large-scale left-right symmetry
(SABER ULA, 2005-01-06)Supersymmetry and large-scale left-right symmetry (Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran) Abstract We show that the low energy limit of the minimal supersymmetric Left-Right models ... -
Symmetries of distributional domain wall geometries
(SABER ULA, 2005-05-25)Symmetries of distributional domain wall geometries Pantoja, Nelson; Sanoja, Alberto Abstract Generalizing the Lie derivative of smooth tensor fields to distribution-valued tensors, we ... -
Symmetry nonrestoration at high temperature and the monopole problem
(SABER ULA, 2005-01-06)Symmetry nonrestoration at high temperature and the monopole problem (Melfo, Alejandra; Dvali, Gia; Senjanovic, Goran) Abstract We investigate the high temperature behavior of SU(5) in its minimal version. We show ... -
Synchronization and collective behavior in globally coupled logarithmic maps
(SABER ULA, 2005-01-06)Synchronization and collective behavior in globally coupled logarithmic maps (Cosenza, Mario; González, J.) Abstract The phenomena of synchronization and nontrivial collective behavior in a system of globally coupled ... -
The 3-dimensional einstein-klein-gordon system in characteristic numerical relativity.
(SABER ULA, 2005-09-18)The 3-dimensional einstein-klein-gordon system in characteristic numerical relativity. (Barreto Acevedo, Willians; Da Silva, A.; Gómez, R.; Lehner, R.; Rosales, L.; Winicour, J..) Abstract We incorporate a massless ... -
The abelian topological mass mechanism from dimensional reduction
(SABER ULA, 2005-01-06)The abelian topological mass mechanism from dimensional reduction (Khoudeir, Adel) Abstract We show that the abelian topological mass mechanism in four dimensions, described by the Cremmer-Sherk action, can be ... -
The gravitational and electrostatic fields far from an isolated Einstein-maxwell source.
(SABER ULA, 2006-08-03) -
Thick domain wall spacetimes with and without reflection symmetry
(SABER ULA, 2005-05-25)Thick domain wall spacetimes with and without reflection symmetry Melfo, Alejandra; Pantoja, Nelson; Skirzewski, Aureliano Abstract We show that the spacetimes of domain wall solutions to ...