Zobrazeno 1 - 10
of 65
pro vyhledávání: '"F. C. E. Lima"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 12, Pp 1-12 (2024)
Abstract Examining the $$\phi ^{4}$$ ϕ 4 and $$\phi ^{8}$$ ϕ 8 models within a two-dimensional framework in the flat spacetime and embracing a theory with unconventional kinetic terms, one investigates the emergence of kinks/antikinks and double-ki
Externí odkaz:
https://doaj.org/article/e371611b75a1427cb1c8d7c0622ee239
Autor:
F. C. E. Lima, C. A. S. Almeida
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 9, Pp 1-10 (2023)
Abstract Building a multi-field theory with canonical and non-canonical contributions, one studies the topological solitons of the O(3)-sigma model. We propose a model constituted by the O(3)-sigma field, the cuscuton-like neutral scalar field, and M
Externí odkaz:
https://doaj.org/article/6e13e97f8c1a414dbe5ac0c57dade1be
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-17 (2021)
Abstract In this paper we study the thick brane scenario constructed in the recently proposed $$f(T,{\mathscr {T}})$$ f ( T , T ) theories of gravity, where T is called the torsion scalar and $${\mathscr {T}}$$ T is the trace of the energy–momentum
Externí odkaz:
https://doaj.org/article/74077e534c4c4504be0fc55e476fac1f
Autor:
F. C. E. Lima, C. A. S. Almeida
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-8 (2021)
Abstract We investigate the presence of topological structures and multiple phase transitions in the O(3)-sigma model with the gauge field governed by Maxwell’s term and subject to a so-called Gausson’s self-dual potential. To carry out this stud
Externí odkaz:
https://doaj.org/article/e68e27ea3f46427897de3c2be9d1b862
Publikováno v:
The European Physical Journal Plus. 138
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cf89951a4de7e3e7cb9a27bf152065d
https://doi.org/10.1140/epjp/s13360-023-04036-8
https://doi.org/10.1140/epjp/s13360-023-04036-8
Publikováno v:
International Journal of Modern Physics D. 32
In the teleparallel $f(T)$ gravity scenario, we consider a five-dimensional thick brane. This scenario is interesting because this theory can provide explanations for inflation, radiation, and dark matter under certain conditions. It is convenient to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07ef475928a82b78d212a1ca48edfa6b
https://doi.org/10.1142/s021827182350013x
https://doi.org/10.1142/s021827182350013x
Publikováno v:
International Journal of Modern Physics D. 31
The thick brane scenario built on the f(T,B) teleparallel gravity theory was considered for the study of phase transitions, internal structures, and new classes of solutions in a model. In this theory, T denotes the torsion scalar, and B is a boundar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::811ea0eae5afb2bffb2bbbf9989629f6
https://doi.org/10.1142/s0218271822500808
https://doi.org/10.1142/s0218271822500808
Publikováno v:
Physica Scripta. 98:065111
In this research article, we use the Shannon's formalism to investigate the quantum information entropy of a particle trapped by the Aharonov-Bohm-type effect. For quantum information study, it is necessary to investigate the eigenstates of the quant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90ad716e680c0b5ecce38f2708f3bce3
https://doi.org/10.1088/1402-4896/acd309
https://doi.org/10.1088/1402-4896/acd309
Autor:
F. C. E. Lima, C. A. S. Almeida
Publikováno v:
Europhysics Letters. 141:10002
The topological structures of a $\phi^6$ theory with multi-field are studied. The $\phi^6$ theory is interesting because it is a theory that allows the shrinkage of topological structures generating double-kink or even multi-kink configurations. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c8399cd485390300aad85b124d0aec1
https://doi.org/10.1209/0295-5075/acaac4
https://doi.org/10.1209/0295-5075/acaac4
Autor:
F. C. E. Lima, C. A. S. Almeida
We introduced a generalized Maxwell-Higgs model in a $(3+1)$ isotropic spacetime, and we found their stationary solutions using the BPS approach in curved spacetime. In order to investigate the compact-like vortices, we assume a particular choice for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9f301a2d20bd9d9aea04ceba2653f48
http://arxiv.org/abs/2110.01074
http://arxiv.org/abs/2110.01074
