Traveling solitons in Lorentz and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi><mml:mi>T</mml:mi></mml:math>breaking systems

Dutra, A. de Souza; Correa, R. A. C.

doi:10.1103/physrevd.83.105007

Cited by 41 publications

(33 citation statements)

References 29 publications

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“…Solitons, Lorentz symmetry breaking, supersymmetry, and entropy were employed using the CE concept [42][43][44][45]. The CE for traveling solitons reveals that the best value of the parameter responsible for breaking the Lorentz symmetry is that where the energy density is distributed equally around the origin.…”

Section: Introductionmentioning

confidence: 99%

Configurational entropy in $$f\,(R,T\,)$$ f ( R , T ) brane models

Correa

Moraes

2016

Eur. Phys. J. C

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In this work we investigate generalized theories of gravity in the so-called configurational entropy (CE) context. We show, by means of this information-theoretical measure, that a stricter bound on the parameter of f (R, T ) brane models arises from the CE. We find that these bounds are characterized by a valley region in the CE profile, where the entropy is minimal. We argue that the CE measure can play a new role and might be an important additional approach to selecting parameters in modified theories of gravitation.

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Section: Introductionmentioning

confidence: 99%

Configurational entropy in $$f\,(R,T\,)$$ f ( R , T ) brane models

Correa

Moraes

2016

Eur. Phys. J. C

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“…The study of the Lorentz-violating effects on the formation of topological defects was firstly considered in the solitonic solutions generated by scalar fields in Refs. [12][13][14][15]. Topological defects arising in scenarios with spontaneous Lorentzsymmetry breaking triggered by tensor fields were reported in Ref.…”

Section: Introductionmentioning

confidence: 99%

Topological self-dual configurations in a Maxwell–Higgs model with a CPT-odd and Lorentz-violating nonminimal coupling

2016

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We have studied the existence of topological self-dual configurations in a nonminimal CPT-odd and Lorentzviolating (LV) Maxwell-Higgs model, where the LV interaction is introduced by modifying the minimal covariant derivative. The Bogomol'nyi-Prasad-Sommerfield formalism has been implemented, revealing that the scalar self-interaction implying self-dual equations contains a derivative coupling. The CPT-odd self-dual equations describe electrically neutral configurations with finite total energy proportional to the total magnetic flux, which differ from the charged solutions of other CPT-odd and LV models previously studied. In particular, we have investigated the axially symmetrical self-dual vortex solutions altered by the LV parameter. For large distances, the profiles possess general behavior similar to the vortices of Abrikosov-Nielsen-Olesen. However, within the vortex core, the profiles of the magnetic field and energy can differ substantially from ones of the Maxwell-Higgs model depending if the LV parameter is negative or positive.

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“…In recent years, investigations about topological defects in the presence of Lorentz symmetry violation have been addressed in the literature [56][57][58]. Works have also been done on monopole and vortices in Lorentz violation scenarios [59].…”

Section: Introductionmentioning

confidence: 99%

Coupled Scalar Fields Oscillons and Breathers in Some Lorentz Violating Scenarios

Correa

Dutra²

2015

Advances in High Energy Physics

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We discuss the impact of the breaking of the Lorentz symmetry on the usual oscillons, the so-called flat-top oscillons, and the breathers. Our analysis is performed by using a Lorentz violation scenario rigorously derived in the literature. We show that the Lorentz violation is responsible for the origin of a kind of deformation of the configuration, where the field configuration becomes oscillatory in a localized region near its maximum value. Furthermore, we show that the Lorentz breaking symmetry produces a displacement of the oscillon along the spatial direction; the same feature is present in the case of breathers. We also show that the effect of a Lorentz violation in the flat-top oscillon solution is responsible by the shrinking of the flat-top. Furthermore, we find analytically the outgoing radiation; this result indicates that the amplitude of the outgoing radiation is controlled by the Lorentz breaking parameter, in such a way that this oscillon becomes more unstable than its symmetric counterpart; however, it still has a long living nature.

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Traveling solitons in Lorentz andCPTbreaking systems

Cited by 41 publications

References 29 publications

Configurational entropy in $$f\,(R,T\,)$$ f ( R , T ) brane models

Configurational entropy in $$f\,(R,T\,)$$ f ( R , T ) brane models

Topological self-dual configurations in a Maxwell–Higgs model with a CPT-odd and Lorentz-violating nonminimal coupling

Coupled Scalar Fields Oscillons and Breathers in Some Lorentz Violating Scenarios

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