Zobrazeno 1 - 10
of 26
pro vyhledávání: '"T. Costa-Soares"'
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 29, Iss 1, Pp 57-64
Recentemente, com o advento da teoria das cordas, existe um consenso de que uma simetria fundamental da relatividade, a simetria de Lorentz, deve ser quebrada na escala de energia do modelo padrão da física de partículas. Esta quebra de simetria d
Externí odkaz:
https://doaj.org/article/b45a015a2d414edf9d9faad46bf20561
Autor:
Marcos Tadeu D’Azeredo Orlando, J. A. Helayël-Neto, Humberto Belich, T. Costa-Soares, R.C. Paschoal
Publikováno v:
Physics Letters A. 370:126-130
We show in this Letter that the dynamics of a non-relativistic particle with spin, coupled to an external electromagnetic field and to a background that breaks Lorentz symmetry, is naturally endowed with an N = 1 -supersymmetry. This result is achiev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dceceae31249a069d89b2ef474bab8fe
https://doi.org/10.1016/j.physleta.2007.05.055
https://doi.org/10.1016/j.physleta.2007.05.055
Autor:
Manoel M. Ferreira, José A. Helayël-Neto, Marcos Tadeu D’Azeredo Orlando, Humberto Belich, T. Costa-Soares
Publikováno v:
Physics Letters B. 639:675-678
Recently, a scheme to analyse topological phases in Quantum Mechanics by means of the non-relativistic limit of fermions non-minimally coupled to a Lorentz-breaking background has been proposed. In this letter, we show that the fixed background, resp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c0b30f26f8bd1055ea9c0945c1ae6a0
https://doi.org/10.1016/j.physletb.2006.07.003
https://doi.org/10.1016/j.physletb.2006.07.003
Autor:
Marcos Tadeu D’Azeredo Orlando, Manoel M. Ferreira, Humberto Belich, T. Costa-Soares, José A. Helayël-Neto
Publikováno v:
International Journal of Modern Physics A. 21:2415-2429
We start from a Lorentz noninvariant Abelian-Higgs model in 1+3 dimensions, and carry out its dimensional reduction to D = 1+2. The planar model resulting thereof is composed by a Maxwell—Chern—Simons–Proca gauge sector, a massive scalar sector
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30aa6b14c23eeb5b65a6a858af006ff6
https://doi.org/10.1142/s0217751x06030904
https://doi.org/10.1142/s0217751x06030904
In this paper we study the effects of Lorentz Symmetry Breaking on thermodynamics properties of ideal gases. Inspired in the dispersion relation came from the Carroll-Field-Jackiw model for Electrodynamics with Lorentz and CPT violation term, we comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6434a00fdc1e1be5600ca4d9cbffedf0
Autor:
Marcos Tadeu D’Azeredo Orlando, L. P. Colatto, T. Costa-Soares, Humberto Belich, José A. Helayël-Neto
This paper deals with situations that illustrate how the violation of Lorentz symmetry in the gauge sector may contribute to magnetic moment generation of massive neutral particles with spin-1/2 and spin-1. The procedure we adopt here is based on Rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11fab9e602cacb68a35991377244ae4f
http://arxiv.org/abs/0806.1253
http://arxiv.org/abs/0806.1253
Publikováno v:
Revista Brasileira de Ensino de Física v.29 n.1 2007
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Volume: 29, Issue: 1, Pages: 57-64, Published: 2007
Revista Brasileira de Ensino de Física, Vol 29, Iss 1, Pp 57-64
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Volume: 29, Issue: 1, Pages: 57-64, Published: 2007
Revista Brasileira de Ensino de Física, Vol 29, Iss 1, Pp 57-64
Recentemente, com o advento da teoria das cordas, existe um consenso de que uma simetria fundamental da relatividade, a simetria de Lorentz, deve ser quebrada na escala de energia do modelo padrão da física de partículas. Esta quebra de simetria d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2edfe820b2716cd884952a43f22232c3
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172007000100011
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172007000100011
Autor:
R.J. Caraballo Vivas, T. Costa-Soares, D.L. Rocco, L. S. Paixão, L. Caldeira, C. Contreras, Mario S. Reis, A. Magnus G. Carvalho, S.S. Pedro, Adelino A. Coelho, C. Cruz, Vivian M. Andrade
Publikováno v:
Journal of Applied Physics. 117:013902
The so-called half-metallic magnets have been proposed as good candidates for spintronic applications due to the feature of exhibiting a hundred percent spin polarization at the Fermi level. Such materials follow the Slater-Pauling rule, which relate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9422c4bcd37d0780410827387aa490c9
https://doi.org/10.1063/1.4905173
https://doi.org/10.1063/1.4905173
The influence of a Lorentz-violating fixed background on fermions is considered by means of a torsion-free non-minimal coupling. The non-relativistic regime is assessed and the Lorentz-violating Hamiltonian is determined. The effect of this Hamiltoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebf1a5dc6daeb0f236c1d9754404c6ed
http://arxiv.org/abs/hep-th/0604149
http://arxiv.org/abs/hep-th/0604149
The non-minimal coupling of fermions to a background responsible for the breaking of Lorentz symmetry is introduced in Dirac's equation; the non-relativistic regime is contemplated, and the Pauli's equation is used to show how an Aharonov-Casher phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e567175712b79c4ced691fdd4457b4c
http://arxiv.org/abs/hep-th/0410104
http://arxiv.org/abs/hep-th/0410104