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pro vyhledávání: '"Orlando, M. T. D."'
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Publikováno v:
Physical Review D 86, 125037 (2012)
For the CPT-even case of the minimal Standard Model Extension, the spin-projector method is adopted to account for the breaking (tensor) $% K_{\mu \nu \kappa \lambda}$ term. We adopt a particular decomposition of this term in fourvectors, and carry o
Externí odkaz:
http://arxiv.org/abs/1304.4820
We study the dynamics of a charged spin-1/2 particle in an external 5-dimensional electromagnetic field. We then consider that we are at the $TeV$\ scale, so that we can access the fifth dimension and carry out our physical considerations in a 5-dime
Externí odkaz:
http://arxiv.org/abs/1204.1537
Autor:
Garcia-Flores, A. F., Moreira, A. F. L., Kaneko, U. F., Ardito, F. M., Terashita, H., Orlando, M. T. D., Gopalakrishnan, J., Ramesha, K., Granado, E.
Publikováno v:
Phys. Rev. Lett. 108, 177202 (2012)
A remarkable hardening (~ 30 cm-1) of the normal mode of vibration associated with the symmetric stretching of the oxygen octahedra for the Ba2FeReO6 and Sr2CrReO6 double perovskites is observed below the corresponding magnetic ordering temperatures.
Externí odkaz:
http://arxiv.org/abs/1112.5023
In this paper, we propose a first order action functional for a large class of systems that generalize the relativistic perfect fluids in the K\"{a}hler parametrization to noncommutative spacetimes. We calculate the equations of motion for the fluid
Externí odkaz:
http://arxiv.org/abs/1109.1688
Publikováno v:
Phys.Rev.D83:125025,2011
The Aharonov-Bohm-Casher problem is examined for a charged particle describing a circular path in presence of a Lorentz-violating background nonminimally coupled to a spinor and a gauge field. It were evaluated the particle eigenenergies, showing tha
Externí odkaz:
http://arxiv.org/abs/1106.0789
Considering $CuO_{2}$ conducting layers present in high Tc superconductors as plasma sheets, we proposed a prescription for the $T_{c}$ pressure behavior taken into account the Casimir effect. The Casimir energy arises from these parallel plasma shee
Externí odkaz:
http://arxiv.org/abs/0807.0865
Publikováno v:
Eur.Phys.J.C62:425-432,2009
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:
http://arxiv.org/abs/0806.1253
Publikováno v:
Phys.Lett.A370:126-130,2007
We show in this paper 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 achieved i
Externí odkaz:
http://arxiv.org/abs/hep-th/0701230
Publikováno v:
Phys.Lett.B639:675-678,2006
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:
http://arxiv.org/abs/hep-th/0603091