Complete stability for spherically symmetric backgrounds in beyond Horndeski theory
| Autor: | Mironov, S., Volkova, V. |
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| Rok vydání: | 2024 |
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| Druh dokumentu: | Working Paper |
| Popis: | We consider a general static, spherically symmetric background in the quadratic beyond Horndeski theory and analyse the behaviour of linear perturbations in both parity odd and parity even sectors. We derive a full set of stability conditions for an arbitrary static, spherically symmetric solution which guarantees absence of ghosts, gradient instabilities, tachyons and superluminal modes in both sectors. Comment: 16 pages, submitted to IJMPA ICNFP2022 Special Issue |
| Databáze: | arXiv |
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