| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-05-28 |
| タイトル |
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タイトル |
Generalization of conformal-disformal transformations of the metric in scalar-tensor theories |
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言語 |
en |
| 著者 |
Babichev, Eugeny
Izumi, Keisuke
Noui, Karim
Tanahashi, Norihiro
Yamaguchi, Masahide
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利 |
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権利情報 |
© 2024 American Physical Society |
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言語 |
en |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
We study new classes of metric transformations in the context of scalar-tensor theories, which involve both higher derivatives of the scalar field and derivatives of the metric itself. In general, such transformations are not invertible as they involve derivatives of the metric, which typically leads to instability due to Ostrogradsky ghosts. We show, however, that a certain class of this type of transformations is invertible: We construct new examples of invertible conformal (and also disformal) transformations with higher derivatives. Finally, we make use of these new transformations to construct extended mimetic theories of gravity, and we study their properties in the context of cosmology. |
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言語 |
en |
| 出版者 |
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出版者 |
American Physical Society |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1103/PhysRevD.110.064063 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
2470-0010 |
| 書誌情報 |
en : Physical Review D
巻 110,
号 6,
p. 064063,
発行日 2024-09-15
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PhysRevD_110_064063.pdf (347 KB)
