On the classicality of bosonic stars
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2022 |
| Outros Autores: | |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10773/35217 |
Resumo: | Because the Klein–Gordon and Proca equations involve ℏ, they describe quantum fields. Their solutions, however, may be treated as classical if their typical action obeys typical≫ℏ. This is possible due to their bosonic nature, allowing states with many particles. We show, by generic arguments, that the typical action for such bosonic stars is typical/ℏ≳(max/Pl)2∼1076(max/⊙)2, where max is the maximal bosonic star mass of the particular model and Pl is the Planck mass. Thus, for models allowing max≫Pl and for solutions with mass ∼max, the classical treatment is legitimate, which includes masses in the astrophysical interesting range ≳⊙. |
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On the classicality of bosonic starsBoson starsGeneral relativityQuantum field theoryBecause the Klein–Gordon and Proca equations involve ℏ, they describe quantum fields. Their solutions, however, may be treated as classical if their typical action obeys typical≫ℏ. This is possible due to their bosonic nature, allowing states with many particles. We show, by generic arguments, that the typical action for such bosonic stars is typical/ℏ≳(max/Pl)2∼1076(max/⊙)2, where max is the maximal bosonic star mass of the particular model and Pl is the Planck mass. Thus, for models allowing max≫Pl and for solutions with mass ∼max, the classical treatment is legitimate, which includes masses in the astrophysical interesting range ≳⊙.World Scientific Publishing2022-11-18T15:51:03Z2022-01-01T00:00:00Z2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/35217eng0218-271810.1142/S0218271822420226Herdeiro, Carlos A. R.Radu, Eugeninfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:07:41Zoai:ria.ua.pt:10773/35217Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:06:14.465037Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
| dc.title.none.fl_str_mv |
On the classicality of bosonic stars |
| title |
On the classicality of bosonic stars |
| spellingShingle |
On the classicality of bosonic stars Herdeiro, Carlos A. R. Boson stars General relativity Quantum field theory |
| title_short |
On the classicality of bosonic stars |
| title_full |
On the classicality of bosonic stars |
| title_fullStr |
On the classicality of bosonic stars |
| title_full_unstemmed |
On the classicality of bosonic stars |
| title_sort |
On the classicality of bosonic stars |
| author |
Herdeiro, Carlos A. R. |
| author_facet |
Herdeiro, Carlos A. R. Radu, Eugen |
| author_role |
author |
| author2 |
Radu, Eugen |
| author2_role |
author |
| dc.contributor.author.fl_str_mv |
Herdeiro, Carlos A. R. Radu, Eugen |
| dc.subject.por.fl_str_mv |
Boson stars General relativity Quantum field theory |
| topic |
Boson stars General relativity Quantum field theory |
| description |
Because the Klein–Gordon and Proca equations involve ℏ, they describe quantum fields. Their solutions, however, may be treated as classical if their typical action obeys typical≫ℏ. This is possible due to their bosonic nature, allowing states with many particles. We show, by generic arguments, that the typical action for such bosonic stars is typical/ℏ≳(max/Pl)2∼1076(max/⊙)2, where max is the maximal bosonic star mass of the particular model and Pl is the Planck mass. Thus, for models allowing max≫Pl and for solutions with mass ∼max, the classical treatment is legitimate, which includes masses in the astrophysical interesting range ≳⊙. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-11-18T15:51:03Z 2022-01-01T00:00:00Z 2022 |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/35217 |
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http://hdl.handle.net/10773/35217 |
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eng |
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eng |
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0218-2718 10.1142/S0218271822420226 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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World Scientific Publishing |
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World Scientific Publishing |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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