Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Silva, E. O."'
Autor:
SILVA, E. O.
Publikováno v:
Repositório Institucional da UFESUniversidade Federal do Espírito SantoUFES.
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O objetivo deste estudo f
O objetivo deste estudo f
Externí odkaz:
http://repositorio.ufes.br/handle/10/7278
Publikováno v:
Physics Letters B 731, 327 (2014)
This Letter is based on the $\kappa$-Dirac equation, derived from the $\kappa$-Poincar\'{e}-Hopf algebra. It is shown that the $\kappa$-Dirac equation preserves parity while breaks charge conjugation and time reversal symmetries. Introducing the Dira
Externí odkaz:
http://arxiv.org/abs/1312.2973
We propose a CPT-even and Lorentz-violating dimension-five nonminimal coupling between fermionic and gauge fields, involving the CPT-even and Lorentz-violating gauge tensor of the Standard-Model Extension. This nonminimal coupling modifies the nonrel
Externí odkaz:
http://arxiv.org/abs/1309.3928
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 40 075007 (2013)
The effects of a Lorentz symmetry violating background vector on the Aharonov-Casher scattering in the nonrelativistic limit is considered. By using the self-adjoint extension method we found that there is an additional scattering for any value of th
Externí odkaz:
http://arxiv.org/abs/1303.1660
Autor:
Silva, E. O., Andrade, F. M.
Publikováno v:
Europhysics Letters 101, 51005 (2013)
The Aharonov-Casher problem in the presence of a Lorentz-violating background nonminimally coupled to a spinor and a gauge field is examined. Using an approach based on the self-adjoint extension method, an expression for the bound state energies is
Externí odkaz:
http://arxiv.org/abs/1302.5362
Publikováno v:
Phys. Rev. D 87, 047701 (2013)
In this work, we propose a CPT-even and Lorentz-violating dimension-five nonminimal coupling between fermionic and gauge fields, involving the CTP-even and Lorentz-violating gauge tensor of the SME. This nonminimal coupling modifies the Dirac equatio
Externí odkaz:
http://arxiv.org/abs/1212.6361
Autor:
Andrade, F. M., Silva, E. O.
Publikováno v:
Physics Letters B 719 (2013) pp. 467-471
In this letter we study the Aharonov-Bohm problem for a spin-1/2 particle in the quantum deformed framework generated by the $\kappa$-Poincar\'{e}-Hopf algebra. We consider the nonrelativistic limit of the $\kappa$-deformed Dirac equation and use the
Externí odkaz:
http://arxiv.org/abs/1212.1944
Publikováno v:
Annals of Physics 339, 510 (2013)
In this work the bound state and scattering problems for a spin-1/2 particle undergone to an Aharonov-Bohm potential in a conical space in the nonrelativistic limit are considered. The presence of a \delta-function singularity, which comes from the Z
Externí odkaz:
http://arxiv.org/abs/1207.0214
In this work we investigate which radial field configuration yields bound states for neutral particles showing non-zero magnetic and electric dipole moments. The main result is that, in contrast with previous works, the Landau analog levels only exis
Externí odkaz:
http://arxiv.org/abs/1205.3942
Publikováno v:
J. Math. Phys. 53, 122106 (2012)
In this paper we investigate the bound state problem of nonrelativistic quantum particles on a conical surface. This kind of surface appears as a topological defect in ordinary semiconductors as well as in graphene sheets. Specifically, we compare an
Externí odkaz:
http://arxiv.org/abs/1205.1155