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Mostrando ítems 1-10 de 13
Artículo
Description of continuum structures in a discrete basis: Three-body resonances and two-nucleon decays
(SciPost, 2020)
Weakly bound and unbound three-body nuclei are studied by using the pseudostate method within the hyperspherical formalism. After introducing the theoretical framework, the method is applied first to the 9Be nucleus, ...
Artículo
At the Borderline of Shape Coexistence: Mo and Ru
(American Physical Society, 2023)
Background: Even-even isotopes of Mo (Z=42) and Ru (Z=44) are nuclei close to the subshell closure at Z=40, where shape coexistence plays a significant role. As a result, their spectroscopic properties are expected to ...
Artículo
Extended Analytical Solutions of the Bohr Hamiltonian with the Sextic Oscillator: Pt-Os Isotopes
(Institute of Physics Publishing, 2023)
The sextic oscillator adapted to the Bohr Hamiltonian has been used to describe even Pt and Os isotopes from A = 188 to 198 and A = 186 to 192, respectively. The purpose of this study was to investigate the possible ...
Artículo
Comment on "from Coulomb Excitation Cross Sections to Nonresonant Astrophysical Rates in Three-body Systems: The Ne 17 Case"
(American Physical Society, 2020)
Parfenova et al. state in [Phys. Rev. C 98, 034608 (2018)2469-998510.1103/PhysRevC.98.034608] that the results presented by Casal et al. [Phys. Rev. C 94, 054622 (2016)2469-998510.1103/PhysRevC.94.054622] concerning the ...
Artículo
Digital quantum simulation of an extended Agassi model: Using machine learning to disentangle its phase-diagram
(American Physical Society, 2022)
A digital quantum simulation for the extended Agassi model is proposed using a quantum platform with eight trapped ions. The extended Agassi model is an analytically solvable model including both short range pairing and ...
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 ...
Artículo
Nuclear Shape-Phase Transitions and the Sextic Oscillator
(MDPI, 2023-11-14)
This review delves into the utilization of a sextic oscillator within the 𝛽 degree of freedom of the Bohr Hamiltonian to elucidate critical-point solutions in nuclei, with a specific emphasis on the critical point associated ...
Artículo
A digital quantum simulation of the Agassi model
(Elsevier, 2022)
A digital quantum simulation of the Agassi model from nuclear physics is proposed and analyzed. The proposal is worked out for the case with four different sites. Numerical simulations and analytical estimations are presented ...
Artículo
Excited-state Quantum Phase Transitions in the Anharmonic Lipkin-Meshkov-Glick Model: Static Aspects
(American Physical Society, 2022)
The basic Lipkin-Meshkov-Glick model displays a second-order ground-state quantum phase transition and an excited-state quantum phase transition (ESQPT). The inclusion of an anharmonic term in the Hamiltonian implies a ...
Artículo
Excited-state Quantum Phase Transitions in the Anharmonic Lipkin-Meshkov-Glick Model: Dynamical Aspects
(American Physical Society, 2023)
The standard Lipkin-Meshkov-Glick (LMG) model undergoes a second-order ground-state quantum phase transition (QPT) and an excited-state quantum phase transition (ESQPT). The inclusion of an anharmonic term in the LMG ...