Topological inflation with multiple winding

Laix, Andrew A. de; Trodden, Mark; Vachaspati, Tanmay

doi:10.1103/physrevd.57.7186

Cited by 21 publications

(17 citation statements)

References 17 publications

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“…Solutions of a super-massive Abelian-Higgs vortex have been previously found numerically [23,24]. The metric was shown to be regular and time-dependent, essentially because topological-inflation sets in.…”

Section: Super-critical Walls and Screening Of The 5d Tensionmentioning

confidence: 97%

“…Rather, it is like a strip of a codimension-1 object of a finite extent, which, seen from afar appears as codimension-2. Thus, the problem under consideration is slightly different from that of [23,24]. The advantage is that we can find the solution analytically, and the detailed structure of the core is not going to be important.…”

Section: Super-critical Walls and Screening Of The 5d Tensionmentioning

confidence: 99%

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Domain walls as probes of gravity

et al. 2007

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We show that domain walls are probes that enable one to distinguish largedistance modified gravity from general relativity (GR) at short distances. For example, low-tension domain walls are stealth in modified gravity, while they do produce global gravitational effects in GR. We demonstrate this by finding exact solutions for various domain walls in the DGP model. A wall with tension lower than the fundamental Planck scale does not inflate and has no gravitational effects on a 4D observer, since its 4D tension is completely screened by gravity itself. We argue that this feature remains valid in a generic class of models of infrared modified gravity. As a byproduct, we obtain exact solutions for super-massive codimension-2 branes.

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Section: Super-critical Walls and Screening Of The 5d Tensionmentioning

confidence: 97%

Section: Super-critical Walls and Screening Of The 5d Tensionmentioning

confidence: 99%

Domain walls as probes of gravity

et al. 2007

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“…Hence multiple winding cosmic strings will be important. In fact, the line energy density of a multiple winding cosmic string is larger than that of a single winding one while its thickness is almost the same as that of a single winding one [9,11]. The multiple winding cosmic strings in type I model are stable while those of Bogomol'nyi limit or type II models are unstable and will decay into single winding ones.…”

Section: Gravitational Collapse Of Type I Cosmic Stringmentioning

confidence: 99%

Black strings in our world

2005

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The brane world scenario is a new approach to resolve the problem on how to compactify the higher dimensional spacetime to our 4-dimensional world. One of the remarkable features of this scenario is the higher dimensional effects in classical gravitational interactions at short distances. Due to this feature, there are black string solutions in our 4-dimensional world. In this paper, assuming the simplest model of complex minimally coupled scalar field with the local U (1) symmetry, we show a possibility of black-string formation by merging processes of type I long cosmic strings in our 4-dimensional world. No fine tuning for the parameters in the model might be necessary.

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“…topological inflation can occur at the GUT scale [15]. The baryon asymmetry problem is one of the most significant problems in modern cosmology and particle physics.…”

Section: Multiple Winding Stringmentioning

confidence: 99%

Primordial black hole formation by stabilized embedded strings in the early universe

Nagasawa

2005

Gen Relativ Gravit

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Primordial black hole formation by cosmic string collapses is reconsidered in the case where the winding number of the string is larger than unity. The line energy density of a multiple winding string becomes greater than that of a single winding string so that the probability of black hole formation by string collapse during loop oscillation would be strongly enhanced. Moreover, this probability could be affected by changes in gravity theory due to large extra dimensions based on the brane universe model. In addition, a wider class of strings which are stable compared to conventional cosmic strings can contribute to such a scenario. Although the production of the multiple winding defect is suppressed and its number density should be small, the enhancement of black hole formation by the increased energy density may provide a large number of evaporating black holes in the present universe which gives more stringent constraints on the string model compared to the ordinary string scenario.

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Topological inflation with multiple winding

Cited by 21 publications

References 17 publications

Domain walls as probes of gravity

Domain walls as probes of gravity

Black strings in our world

Primordial black hole formation by stabilized embedded strings in the early universe

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