Zobrazeno 1 - 10
of 462
pro vyhledávání: '"Arias, J. M."'
Autor:
Baid, S., Sáiz, A., Lamata, L., Pérez-Fernández, P., Romero, A. M., Ríos, A., Arias, J. M., García-Ramos, J. E.
We investigate the Extended Lipkin Model (ELM), whose phase diagram mirrors that of the Interacting Boson Approximation model (IBA). Unlike the standard Lipkin model, the ELM (as the IBA) features both first- and second-order quantum shape phase tran
Externí odkaz:
http://arxiv.org/abs/2404.15558
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 resemble those of Sr ($Z=38
Externí odkaz:
http://arxiv.org/abs/2309.07426
In this paper, the application of quantum simulations and quantum machine learning to solve low-energy nuclear physics problems is explored. The use of quantum computing to deal with nuclear physics problems is, in general, in its infancy and, in par
Externí odkaz:
http://arxiv.org/abs/2307.07332
Publikováno v:
Quantum 8, 1365 (2024)
Quantum phase transitions encompass a variety of phenomena that occur in quantum systems exhibiting several possible symmetries. Traditionally, these transitions are explored by continuously varying a control parameter that connects two different sym
Externí odkaz:
http://arxiv.org/abs/2302.00382
Cosmological simulations of structure formation are invaluable to study the evolution of the Universe and the development of galaxies in it successfully reproducing many observations in the context of the cosmological paradigm $\Lambda$CDM. However,
Externí odkaz:
http://arxiv.org/abs/2102.05484
The goal of this study is to find an observable that could distinguish between both phenomena, shape coexistence and quantum phase transitions. The selected observable to be analyzed is the two-neutron transfer intensity between the 0+ states in the
Externí odkaz:
http://arxiv.org/abs/2007.12629
Autor:
Fortunato, L., Alonso, C. E., Arias, J. M., Casal, J., Hagino, K., Lay, J. A., Lanza, E. G., Lenzi, S. M., Lubian, J., Oishi, T., Pérez-Bernal, F.
Publikováno v:
Eur. Phys. J. A56, 49 (2020)
We give an account of the main achievements of the scientific career of Andrea Vitturi so far, that have recently been discussed during the workshop "Theoretical Nuclear Physics in Padova" on the occasion of his retirement from full professor at the
Externí odkaz:
http://arxiv.org/abs/1912.03932
Autor:
Casal, J., Rodríguez-Gallardo, M., Arias, J. M., Gómez-Camacho, J., Fortunato, L., Vitturi, A.
Publikováno v:
SciPost Physics Proceedings 3 (2020) 036
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 $\boldsymbol{^9}$Be nucleus, showing a good ag
Externí odkaz:
http://arxiv.org/abs/1910.09418
We present a number conserving particle-hole RPA theory for collective excitations in the transition from normal to superfluid nuclei. The method derives from an RPA theory developed long ago in quantum chemistry using antisymmetric geminal powers, o
Externí odkaz:
http://arxiv.org/abs/1906.12217
Autor:
Arias, J. M., García-Ramos, J. E.
The influence of Franco Iachello in Physics during the last 50 years and, in particular, in the use of algebraic methods applied to very different physical problems has been broad, extense and have permeated most branches of Physics, from Nuclear and
Externí odkaz:
http://arxiv.org/abs/1901.08862