Primordial Gravitational Wave Birefringence in a de Sitter Background with Chern–Simons Coupling
In this work, we investigate tensor perturbations in a de Sitter background within the framework of Chern–Simons modified gravity. We introduce transverse-traceless perturbations and analyze how the Chern–Simons Cotton tensor induces parity-violating modifications to gravitational wave propagation,...
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| Principais autores: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado: |
MDPI AG
2025-12-01
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| Series: | Universe |
| Assuntos: | |
| Acceso en liña: | https://www.mdpi.com/2218-1997/12/1/6 |
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