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Mostrando ítems 11-20 de 20
Artículo
Review of critical point symmetries and shape phasetransitions within algebraic and collective models
(2012)
Several aspect of shape phase transitions and critical point symmstries are reviewed inthis contribution within the frameworks of the Interacting Boson Model(IBM) and theInteracting Boson Fermion Model(IBFM) for even ...
Artículo
Coupling of Dipole Mode to γ -unstable Quadrupole Oscillations
(Elsevier, 2000)
The coupling of the high-lying dipole mode to the low-lying quadrupole modes for the case of deformed γ-unstable nuclei is studied. Results from the geometrical model are compared to those obtained within the dipole boson ...
Artículo
Phase transitions in the interacting boson fermion model: The γ -unstable case
(American Physical Society, 2005-01-11)
The phase transition around the critical point in the evolution from spherical to deformed γ-unstable shapes is investigated in odd nuclei within the interacting boson fermion model. We consider the particular case of an ...
Artículo
Shape phase transition in odd nuclei in a multi- j model: The UB(6) ⊗ UF(12) case
(The American Physical Society, 2007)
The phase transition in odd nuclei when the underlying even-even core nuclei experience a transition from spherical to deformed γ-unstable shapes is investigated. The odd particle is assumed to be moving in the three ...
Artículo
Remarks on shape phase transitions in nuclei
(Institute of Physics Publishing, 2009)
Various aspects of shape phase transitions in even as well as odd systems are reviewed. Firstly, the case of an odd j 3/2 particle coupled to an even-even boson core that undergoes a transition from spherical limit (U(5)) ...
Artículo
Shape phase transition in odd-even nuclei: From spherical to deformed γ -unstable shapes
(The American Physical Society, 2010)
Shape phase transitions in odd-A nuclei are investigated within the framework of the interacting boson-fermion model. The case of a single j=9/2 fermion coupled to an even-even boson core is considered. This boson core ...
Artículo
Review of Shape Phase Transition Studies for Bose-Fermi Systems: The Effect of the Odd-Particle on the Bosonic Core
(MDPI, 2021-01)
The quantum phase transition studies we have done during the last few years for odd-even systems are reviewed. The focus is on the quantum shape phase transition in Bose-Fermi systems. They are studied within the Interacting ...
Ponencia
Shape phase transitions and critical points
(American Institute of Physics, 2009)
We investigate different aspects connected with shape phase transitions in nuclei and the possible occurrence of dynamical symmetries at the critical points. We discuss in particular the behaviour of the neighbour odd ...
Artículo
U(5)-O(6) transition in the interacting boson model and the E(5) critical point symmetry
(American Physical Society, 2003-10-01)
The relation of the recently proposed E(5) critical point symmetry with the interacting boson model is investigated. The large-N limit of the interacting boson model at the critical point in the transition ...
Artículo
Intrinsic structure of two-phonon states in the interacting boson model
(Elsevier, 1998)
A general study of excitations up to two-phonon states is carried out using the intrinsicstate formalism of the Interacting Boson Model (IBM). Spectra and transitions for the different dynamical symmetries are analyzed and ...