On the Study of Oscillons in Scalar Field Theories: A New Approach

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

doi:10.1155/2016/4176909

Cited by 5 publications

(4 citation statements)

References 40 publications

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“…Besides that, they are coupled equations. It might be important to remark that the presence of nonlinearity is not surprising, given that such a behavior is found in a wide range of areas of Physics [53][54][55][56][57][58][59][60][61]. Because of the nonlinearity, we are led to ask if the problem can be analytically resolved.…”

Section: The Static Wormhole Metricmentioning

confidence: 99%

Analytical general solutions for static wormholes inf(R,T) gravity

Moraes

Correa

Lobato

2017

J. Cosmol. Astropart. Phys.

194

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Originally proposed as a tool for teaching the general theory of relativity, wormholes are today approached in many different ways and are seeing as an efficient alternative for interstellar and time travel. Attempts to achieve observational signatures of wormholes have been growing as the subject has became more and more popular. In this article we investigate some f (R, T ) theoretical predictions for static wormholes, i.e., wormholes whose throat radius can be considered a constant. Since the T -dependence in f (R, T ) gravity is due to the consideration of quantum effects, a further investigation of wormholes in such a theory is well motivated. We obtain the energy conditions of static wormholes in f (R, T ) gravity and apply an analytical approach to find the solutions. We highlight that our results are in agreement with previous solutions presented in the literature.

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Section: The Static Wormhole Metricmentioning

confidence: 99%

Analytical general solutions for static wormholes inf(R,T) gravity

Moraes

Correa

Lobato

2017

J. Cosmol. Astropart. Phys.

194

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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

Self Cite

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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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“…Recently, a great number of works using a similar process to break the Lorentz symmetry, with a tensor like

k^{μ ν}

, have been used in the literature, from microscope to cosmological scales …”

Section: Extended Lagrangian With Lorentz‐violating Interactionmentioning

confidence: 99%

Lorentz Violation and Topologically Trapped Fermions in 2+1 Dimensions

et al. 2018

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The full spectrum of two-dimensional fermion states in a scalar soliton trap with a Lorentz breaking background is investigated in the context of the novel 2D materials, where the Lorentz symmetry should not be strictly valid. The field theoretical model with Lorentz breaking terms represents Dirac electrons in one valley and in a scalar field background. The Lorentz violation comes from the difference between the Dirac electron and scalar mode velocities, which should be expected when modelling the electronic and lattice excitations in 2D materials. We extend the analytical methods developed in the context of 1+1 field theories to explore the effect of the Lorentz symmetry breaking in the charge carrier density of 2D materials in the presence of a domain wall with a kink profile. The width and the depth of the trapping potential from the kink is controlled by the Lorentz violating term, which is reflected analytically in the band structure and properties of the trapped states. Our findings enlarge previous studies of the edge states obtained with domain wall and in strained graphene nanoribbon in a chiral gauge theory.

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On the Study of Oscillons in Scalar Field Theories: A New Approach

Cited by 5 publications

References 40 publications

Analytical general solutions for static wormholes inf(R,T) gravity

Analytical general solutions for static wormholes inf(R,T) gravity

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

Lorentz Violation and Topologically Trapped Fermions in 2+1 Dimensions

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