Coupled scalar-Proca soliton stars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00579755" target="_blank" >RIV/68378271:_____/23:00579755 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevD.108.044044" target="_blank" >https://doi.org/10.1103/PhysRevD.108.044044</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.108.044044" target="_blank" >10.1103/PhysRevD.108.044044</a>
Alternative languages
Result language
angličtina
Original language name
Coupled scalar-Proca soliton stars
Original language description
We construct and explore the physical properties of textit{scalaroca stars}: spherically symmetric solitonic solutions made of a complex scalar field and a complex Proca field . We restrict our attention to configurations in which both fields are in the fundamental state and possess an equal mass, focusing on the cases when () the scalar and Proca fields are (non--linearly) super--imposed and do not interact with each other, and () the scalar and Proca fields interact through the term . The solutions are found numerically for the non--interacting case () as well as for both signs of the interaction coupling constant . While pure ( single--field) Proca/scalar boson stars are the most/least massive for weakly--interacting fields, one can obtain more massive solutions for a sufficiently strong interaction. Besides, in the latter case, solutions can be either in a synchronized state -- in which both fields have the same frequency -- or in a non--synchronized state. In addition, we observe that the coupling between the two fields allows solitonic solutions with a real scalar field. We further comment on the possibility of spontaneous scalarization and vectorization of the interacting solitonic solution.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/GM21-16583M" target="_blank" >GM21-16583M: New avenues in the hunt for dark energy</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
108
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
044044
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85172777891