2015
DOI: 10.1088/0264-9381/32/8/085009
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Abelian–Higgs strings in Rastall gravity

Abstract: In this paper we analyze Abelian-Higgs strings in a phenomenological model that takes quantum effects in curved space-time into account. This model, first introduced by Rastall, cannot be derived from an action principle. We formulate phenomenological equations of motion under the guiding principle of minimal possible deformation of the standard equations. We construct string solutions that asymptote to a flat space-time with a deficit angle by solving the set of coupled non-linear ordinary differential equati… Show more

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Cited by 28 publications
(9 citation statements)
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“…Rastall gravity has been employed to study the cosmological consequences [11][12][13]. Various exact solutions of Rastall gravity have also been derived in [14][15][16][17][18].…”
Section: Introductionmentioning
confidence: 99%
“…Rastall gravity has been employed to study the cosmological consequences [11][12][13]. Various exact solutions of Rastall gravity have also been derived in [14][15][16][17][18].…”
Section: Introductionmentioning
confidence: 99%
“…Despite this represents the main drawback of the model, one alternative to solve this fact could be given by the introduction of an auxiliary (external) field in the Einstein-Hilbert action by means of a Lagrange multiplier. This would provide two possibilities: the Rastall gravity could be naturally seen as an extension of the Einstein model, secondly, one could also assume that this new contribution to the Einstein gravity arises from the quantum effects described by the Rastall equation [28].…”
Section: Dynamics Of Rastall Gravitymentioning
confidence: 99%
“…where and is a constant. As a theory of modified gravity, Rastall gravity has received increasing attention lately [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44], particularly due to recent findings in cosmology [45][46][47][48][49][50][51][52][53][54].…”
Section: Introductionmentioning
confidence: 99%