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http://hdl.handle.net/10773/29839
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DC Field | Value | Language |
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dc.contributor.author | Herdeiro, C. A. R. | pt_PT |
dc.contributor.author | Oliveira, J. M S. | pt_PT |
dc.contributor.author | Radu, E. | pt_PT |
dc.date.accessioned | 2020-11-18T17:57:13Z | - |
dc.date.available | 2020-11-18T17:57:13Z | - |
dc.date.issued | 2020-01-01 | - |
dc.identifier.issn | 1434-6044 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/29839 | - |
dc.description.abstract | Recently, no-go theorems for the existence of solitonic solutions in Einstein-Maxwell-scalar (EMS) models have been established (Herdeiro and Oliveira in Class Quantum Gravity 36(10):105015, 2019). Here we discuss how these theorems can be circumvented by a specific class of non-minimal coupling functions between a real, canonical scalar field and the electromagnetic field. When the non-minimal coupling function diverges in a specific way near the location of a point charge, it regularises all physical quantities yielding an everywhere regular, localised lump of energy. Such solutions are possible even in flat spacetime Maxwell-scalar models, wherein the model is fully integrable in the spherical sector, and exact solutions can be obtained, yielding an explicit mechanism to de-singularise the Coulomb field. Considering their gravitational backreaction, the corresponding (numerical) EMS solitons provide a simple example of self-gravitating, localised energy lumps. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | Springer | pt_PT |
dc.relation | PD/BD/128184/2016 | pt_PT |
dc.relation | UIDB/04106/2020 | pt_PT |
dc.relation | UIDP/04106/2020 | pt_PT |
dc.relation | UIDB/00013/2020 | pt_PT |
dc.relation | UIDP/00013/2020 | pt_PT |
dc.relation | PTDC/FIS-OUT/28407/2017 | pt_PT |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/690904/EU | pt_PT |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/777740/EU | pt_PT |
dc.relation | COST Action CA16104 | pt_PT |
dc.rights | openAccess | pt_PT |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.title | A class of solitons in Maxwell-scalar and Einstein-Maxwell-scalar models | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.issue | 1 | pt_PT |
degois.publication.title | European Physical Journal C | pt_PT |
degois.publication.volume | 80 | pt_PT |
dc.identifier.doi | 10.1140/epjc/s10052-019-7583-9 | pt_PT |
dc.identifier.essn | 1434-6052 | pt_PT |
Appears in Collections: | CIDMA - Artigos DMat - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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EPJC80(2020)23.pdf | 429.69 kB | Adobe PDF | View/Open |
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