Zobrazeno 1 - 8
of 8
pro vyhledávání: '"S S Avancini"'
Publikováno v:
Journal of Physics A: Mathematical and General. 28:4915-4923
Assuming q-deformed commutation relations for the fermions, an extension of the standard Lipkin Hamiltonian is presented. The usual quasi-spin representation of the standard Lipkin model is also obtained in this q-deformed framework. A variationally
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27f155f929ecb1fd23c7635af7b3e7fd
https://doi.org/10.1088/0305-4470/28/17/022
https://doi.org/10.1088/0305-4470/28/17/022
Autor:
D P Menezes, S S Avancini
Publikováno v:
Journal of Physics A: Mathematical and General. 26:6261-6270
We investigate the behaviour of the pairing model within the context of quantum algebras. The pairing Hamiltonian is diagonalized exactly for different values of the deformation parameter q in systems with 8 and 50 particles. The same Hamiltonian is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c51c436cb37234ae2a35c75d5d728fe2
https://doi.org/10.1088/0305-4470/26/22/025
https://doi.org/10.1088/0305-4470/26/22/025
Autor:
S S Avancini, D P Menezes
Publikováno v:
Journal of Physics A: Mathematical and General. 26:1139-1146
Some methods have been developed to calculate the suq(2) Clebsch-Gordan coefficients (CGC). Here the authors develop a method based on the calculation of Clebsch-Gordan generating functions through the use of 'quantum algebraic' coherent states. Calc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13de548e0763c983c2d5bf023e9138de
https://doi.org/10.1088/0305-4470/26/5/032
https://doi.org/10.1088/0305-4470/26/5/032
Autor:
S. S. Avancini, C. C. Barros, J. R. Marinelli, D. P. Menezes, C. Provide^ncia, A. M. Santos, Marina Nielsen, Fernando S. Navarra, Mirian E. Bracco
Publikováno v:
CIÊNCIAVITAE
The possibility of exotic structures, i. e., the “pasta” phase to be formed in the low density region of nuclear and stellar matter is investigated. The effects of the presence of α‐particles are considered in the context of relativistic nucle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd1b0aa31ef6c3ec4f11b21d83a3c3cd
https://doi.org/10.1063/1.3523170
https://doi.org/10.1063/1.3523170
In the present work we use the large-$N_c$ approximation to investigate quark matter described by the SU(2) Nambu--Jona-Lasinio model subject to a strong magnetic field. The Landau levels are filled in such a way that usual kinks appear in the effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3515052950e8c4e3260bca316f08c1f
http://arxiv.org/abs/0811.3361
http://arxiv.org/abs/0811.3361
Autor:
D. P. Menezes, S. S. Avancini, J. R. Marinelli, M. M. Watanabe de Moraes, C. Provide^ncia, Ricardo Alarcon, Philip L. Cole, Chaden Djalali, Fernando Umeres
Publikováno v:
AIP Conference Proceedings.
A density dependent hadronic model and a common parametrization of the non‐linear Walecka model are used to obtain the lead neutron skin thickness through its proton and neutron density profiles. The neutron skin thickness is known to reflect the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be843cb1a3a43de36b4eb90e2632fd91
https://doi.org/10.1063/1.2813837
https://doi.org/10.1063/1.2813837
Autor:
S. S. Avancini, G. Krein
Publikováno v:
Hadron Physics 2000.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::717dbc601483cd40d704fbe7e106555a
https://doi.org/10.1142/9789812811653_0045
https://doi.org/10.1142/9789812811653_0045
Publikováno v:
Journal of Physics: Conference Series; 2019, Vol. 1291 Issue 1, p1-1, 1p