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Nicola Bartolo on Muck Rack

Nicola Bartolo

As seen in: Physical Review B
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Gravitational waves induced by scalar-tensor mixing

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By Sezione di Padova, Guillem Domènech, Pritha Bari, Nicola Bartolo
| Physical Review B
This paper explores the physics of second-order gravitational waves (GWs) induced by scalar-tensor perturbation interactions in the radiation-dominated Universe. We investigate the distinctive signatures of these GWs and their detectability compared to scalar-induced GWs. Unlike scalar-scalar induced GWs, scalar-tensor induced GWs do not present resonances or a logarithmic running in the low frequency tail in the case of peaked primordial spectra.
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