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Mostrando ítems 61-70 de 89
Artículo
Excited-state quantum phase transitions in a two-fluid Lipkin model
(American Physical Society, 2017-05-30)
Background: Composed systems have become of great interest in the framework of ground-state quantum phase transitions (QPTs) and many of their properties have been studied in detail. However, in these systems, the study ...
Artículo
Stepped vitrification technique for human ovarian tissue cryopreservation
(Nature Research, 2019-12)
The advantage of stepped vitrification (SV) is avoiding ice crystal nucleation, while decreasing the toxic effects of high cryoprotectant concentrations. We aimed to test this method for human ovarian tissue cryopreservation. ...
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
Quantum entanglement in nuclear Cooper-pair tunneling with γ rays
(American Physical Society, 2021)
While Josephson-like junctions, transiently established in heavy-ion collisions (τcoll ≈ 10−21 s) between superfluid nuclei—and through which Cooper-pair tunneling (Q-value Q2n) proceeds mainly in terms of successive transfer ...
Artículo
Finite-size corrections in the bosonic algebraic approach to two-dimensional systems
(American Physical Society, 2011)
Analytical results beyond the mean-field-limit approximation for several observables of the two-dimensional limit of the vibron model are presented. Finite-size scaling exponent values are also analytically derived. The ...
Artículo
Geometrical analysis of wave propagation in left-handed metamaterials. Part I
(2008)
Geometrical analyses of basic equations of electromagnetics waves propagation in anisotropic dielectric materials with magnetic isotropy are presented in two complementary papers (Part I and Part II). In the present ...
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 ...
Artículo
Geometrical analysis of wave propagation in left-handed metamaterials. Part II
(2008)
—Geometrical analysis of basic equations of electromagnetics waves propagation in anisotropic dielectric materials with magnetic isotropy are presented in two complementary papers (Part I and Part II). In this paper, ...