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Artículo
Describing resonances in a discrete basis
(American Physical Society, 2004-03-01)
The problem of describing resonances when the continuum is represented by a discrete set of normalizable states is addressed. In particular, here the description of resonances in a transformed harmonic oscillator basis is ...
Artículo
Two-state theory of nonlinear stochastic resonance
(American Physical Society, 2003-11-21)
An amenable, analytical two-state description of the nonlinear population dynamics of a noisy bistable system driven by a rectangular subthreshold signal is put forward. Explicit expressions for the driven population ...
Artículo
Induced nucleon polarization and meson-exchange currents in (e,e'p) reactions
(American Physical Society, 2004-06-01)
Nucleon recoil polarization observables in (e,e'p) reactions are investigated using a semirelativistic distorted-wave model which includes one- and two-body currents with relativistic corrections. Results for ...
Artículo
Heat flux and upper boundary condition in an open fluidized granular gas
(IOP Publishing Ltd., 2004-06-15)
The transport coefficient coupling heat flux and density gradient in a granular gas is measured by taking advantage of the existence of a minimum in the temperature profile of an open vibrated granular system. The results ...
Artículo
Phase diagram of the proton-neutron interacting boson model
(American Physical Society, 2004-11-19)
We study the phase diagram of the proton-neutron interacting boson model with special emphasis on the phase transitions leading to triaxial phases. The existence of a new critical point between spherical and triaxial shapes ...