Thick brane split caused by spacetime torsion

Yang, Jie; Li, Yunliang; Zhong, Yuan; Li, Yang

doi:10.1103/physrevd.85.084033

Cited by 83 publications

(101 citation statements)

References 111 publications

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“…The authors of Ref. [49] considered the case of f (T ) = T + αT n and found that the brane will have a split with the increasing of the parameter |α|, which is similar to the case of f (R) brane [24,51,52]. In Ref.…”

Section: Introductionmentioning

confidence: 92%

Tensor perturbations off(T)branes

2016

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We explore the tensor perturbation of the f (T ) brane embedded in an AdS5 spacetime. With the transverse-traceless condition, we get the tensor perturbation equation of the f (T ) brane and show that the stability of this brane system can be ensured. In addition, we take f (T ) = T + αT 2 as an example to analyse the localization problem of the graviton zero mode. It is shown that the graviton zero mode can be localized on the brane.

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Section: Introductionmentioning

confidence: 92%

Tensor perturbations off(T)branes

2016

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“…In contrast with the standard kink, compactons only support massive states bounded to it [10,11,17,18]. Another interesting result appears in the recent work [19], where one identifies the thick brane splitting caused by the spacetime torsion.…”

Section: Introductionmentioning

confidence: 94%

First-order formalism for flat branes in generalizedN-field models

et al. 2013

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This work deals with braneworld scenarios obtained from N real scalar fields, whose dynamics is generalized to include higher order power in the derivative of the fields. For the scalar fields being driven by nonstandard dynamics, we show how a first-order formalism can be obtained for flat brane in the presence of several fields. We then illustrate our findings investigating distinct potentials with one and two fields, obtaining stable standard and compact solutions in the braneworld theory. In particular, we have found different models describing the very same warp factor.

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“…In the thick brane world scenario, the brane can be a domain wall generated by a background scalar field [37][38][39][53][54][55][56][57][58] or by pure geometry in a co-dimension one space-time [59][60][61][62][63]. On the other hand, it is shown that in some cases thick branes may have inner structure, which may lead to new phenomenon in the resonance and the localization of gravity and matter fields [64][65][66][67][68][69]. Thus, it is natural to generate domain wall by the mimetic scalar field, and the new degree of freedoms allows us to construct new type of thick branes.…”

Section: Introductionmentioning

confidence: 99%

Thick branes with inner structure in mimetic gravity

Zhong

Zhang

et al. 2018

Eur. Phys. J. C

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In this paper, thick branes generated by mimetic scalar field are investigated. Three typical thick brane models are constructed and the linear tensor and scalar perturbations are analyzed. These branes have different inner structures, some of which are absent in general relativity. For each brane model, the solution is stable under both tensor and scalar perturbations. The tensor zero modes are localized on the branes, while the scalar perturbations do not propagate and they are not localized on the brane. As the branes split into multi sub-branes for specific parameters, the potentials of the tensor perturbations also split into multi-wells, and this may lead to new phenomenon in the resonance of the tensor perturbation and the localization of matter fields.

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Thick brane split caused by spacetime torsion

Cited by 83 publications

References 111 publications

Tensor perturbations off(T)branes

Tensor perturbations off(T)branes

First-order formalism for flat branes in generalizedN-field models

Thick branes with inner structure in mimetic gravity

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