Primordial gravitational waves in DHOST inflation Article Swipe
Philippe Brax
,
Andrei Lazanu
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1093/mnrasl/slaf040
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1093/mnrasl/slaf040
We consider DHOST inflationary models with a shift symmetry leading to a de Sitter space–time at the background cosmological level. Deviations from scale invariance of the scalar and tensor perturbations follow from the breaking of the shift symmetry by quadratic and quartic operators. These models show a strong violation of the consistency relation of single-field inflationary models with a very flat spectrum of tensor perturbations. This opens up the prospects of future detection of primordial gravitational waves by mHz experiments.
Related Topics
Concepts
Physics
Gravitational wave
Inflation (cosmology)
Quartic function
De Sitter universe
Scale invariance
Theoretical physics
Symmetry (geometry)
Scalar (mathematics)
Gravitation
Scalar field
Tensor (intrinsic definition)
Mathematical physics
Classical mechanics
Astrophysics
Quantum mechanics
Universe
Mathematics
Geometry
Pure mathematics
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1093/mnrasl/slaf040
- https://academic.oup.com/mnrasl/advance-article-pdf/doi/10.1093/mnrasl/slaf040/63029778/slaf040.pdf
- OA Status
- hybrid
- Cited By
- 1
- References
- 36
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4406785270
All OpenAlex metadata
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https://openalex.org/W4406785270Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1093/mnrasl/slaf040Digital Object Identifier
- Title
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Primordial gravitational waves in DHOST inflationWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-03-26Full publication date if available
- Authors
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Philippe Brax, Andrei LazanuList of authors in order
- Landing page
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https://doi.org/10.1093/mnrasl/slaf040Publisher landing page
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https://academic.oup.com/mnrasl/advance-article-pdf/doi/10.1093/mnrasl/slaf040/63029778/slaf040.pdfDirect link to full text PDF
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YesWhether a free full text is available
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hybridOpen access status per OpenAlex
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https://academic.oup.com/mnrasl/advance-article-pdf/doi/10.1093/mnrasl/slaf040/63029778/slaf040.pdfDirect OA link when available
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Physics, Gravitational wave, Inflation (cosmology), Quartic function, De Sitter universe, Scale invariance, Theoretical physics, Symmetry (geometry), Scalar (mathematics), Gravitation, Scalar field, Tensor (intrinsic definition), Mathematical physics, Classical mechanics, Astrophysics, Quantum mechanics, Universe, Mathematics, Geometry, Pure mathematicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
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36Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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