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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8670
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dc.contributor.authorMukherjee, Dipayan-
dc.contributor.authorRagavendra, H V-
dc.contributor.authorSethi, Shiv-
dc.date.accessioned2026-02-27T11:03:54Z-
dc.date.available2026-02-27T11:03:54Z-
dc.date.issued2026-01-21-
dc.identifier.citationPhysical Review D, 2026, Vol. 113(2), AR No. 023533en_US
dc.identifier.issn2470-0029-
dc.identifier.urihttp://hdl.handle.net/2289/8670-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en_US
dc.description.abstractWe investigate the impact of statistical inhomogeneity and anisotropy in primordial scalar perturbations on the scalar-induced gravitational waves (SIGWs). Assuming inflationary quantum fluctuations originate from a coherent state, the resulting primordial scalar perturbations acquire a nonzero space-dependent mean, violating statistical homogeneity, statistical isotropy, and parity. As a consequence of statistical inhomogeneities, the SIGW acquires distinct scale-dependent features in its correlation function. Statistical anisotropies further lead to possible parity violation and correlation between different polarization modes in the tensor perturbations. Therefore, detection of these signatures in the stochastic gravitational wave background would offer probes to the statistical nature of primordial scalar perturbations beyond the scales accessible to cosmic microwave background observations.en_US
dc.language.isoenen_US
dc.publisherPhysical Review Den_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2026PhRvD.113b3533M/abstracten_US
dc.relation.urihttps://doi.org/10.48550/arXiv.2506.23798en_US
dc.relation.urihttps://doi.org/10.1103/qd1s-9fxlen_US
dc.rights© 2026 American Physical Societyen_US
dc.subjectGravitational wavesen_US
dc.subjectInflationen_US
dc.subjectQuantum cosmologyen_US
dc.titleScalar-induced gravitational waves from coherent initial statesen_US
dc.typeArticleen_US
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