KFU. Card publication. Gravitational-Scalar Instability of Cosmological Model based on Two-Component System of Degenerate Scalarly Charged Fermions With Asymmetric Higgs Interaction. II. WKB-Approximation

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GRAVITATIONAL-SCALAR INSTABILITY OF COSMOLOGICAL MODEL BASED ON TWO-COMPONENT SYSTEM OF DEGENERATE SCALARLY CHARGED FERMIONS WITH ASYMMETRIC HIGGS INTERACTION. II. WKB-APPROXIMATION

Form of presentation

Articles in international journals and collections

Year of publication

2023

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Authors, employees of KFU

Ignatev Yuriy Gennadievich, author

Bibliographic description in the original language

Yu. G. Ignat'ev, Gravitational-Scalar Instability of Cosmological Model based on Two-Component System of Degenerate Scalarly Charged Fermions With Asymmetric Higgs Interaction. II. WKB-Approximation // Russ. Phys. J., Vol. 65, No. 9, pp 1503-1521, 2023

Annotation

Solutions of the system of evolutionary equations in the short-wavelength approximation are found and studied. A connection is established between the problem of the evolution of short-wavelength gravitational-scalar perturbations and the problem of eigenvectors and eigenvalues of a linear operator. By means of an applied mathematical package, a program for calculating the amplitudes of perturbations of the cosmological model was created. It is shown that unstable short-wavelength perturbation modes arise in such a system. A numerical model for the evolution of gravitational-scalar perturbations of the cosmological model has been constructed and analyzed.

Keywords

scalar charged fermions, cosmological model, scalar field, asymmetric scalar doublet, gravitational stability, WKB approximation

The name of the journal

Russian Physics Journal

URL

https://link.springer.com/epdf/10.1007/s11182-023-02796-5?sharing_token=DlLN32JR8RnU5l2soY2a0fe4RwlQNchNByi7wbcMAY4r2Xu2GsG0yeZFzwSn0V-Q7-VBpJldv9zWpuOk4lxr1a8vT0cDQbCNH6csGBMYNbfCCodrsHxqf-BTOo29FvaB-1wVaJZuV8oJOMewZmnRcvSUt724zGE8CnET0bJwD_0%3D

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=276046&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Ignatev Yuriy Gennadievich	ru_RU
dc.date.accessioned	2023-01-01T00:00:00Z	ru_RU
dc.date.available	2023-01-01T00:00:00Z	ru_RU
dc.date.issued	2023	ru_RU
dc.identifier.citation	Yu. G. Ignat'ev, Gravitational-Scalar Instability of Cosmological Model based on Two-Component System of Degenerate Scalarly Charged Fermions With Asymmetric Higgs Interaction. II. WKB-Approximation // Russ. Phys. J., Vol. 65, No. 9, pp 1503-1521, 2023	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=276046&p_lang=2	ru_RU
dc.description.abstract	Russian Physics Journal	ru_RU
dc.description.abstract	Solutions of the system of evolutionary equations in the short-wavelength approximation are found and studied. A connection is established between the problem of the evolution of short-wavelength gravitational-scalar perturbations and the problem of eigenvectors and eigenvalues of a linear operator. By means of an applied mathematical package, a program for calculating the amplitudes of perturbations of the cosmological model was created. It is shown that unstable short-wavelength perturbation modes arise in such a system. A numerical model for the evolution of gravitational-scalar perturbations of the cosmological model has been constructed and analyzed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	scalar charged fermions	ru_RU
dc.subject	cosmological model	ru_RU
dc.subject	scalar field	ru_RU
dc.subject	asymmetric scalar doublet	ru_RU
dc.subject	gravitational stability	ru_RU
dc.subject	WKB approximation	ru_RU
dc.title	Gravitational-Scalar Instability of Cosmological Model based on Two-Component System of Degenerate Scalarly Charged Fermions With Asymmetric Higgs Interaction. II. WKB-Approximation	ru_RU
dc.type	Articles in international journals and collections	ru_RU