3 papers
astro-ph.CO2025
Reconstructing Primordial Curvature Perturbations via Scalar-Induced Gravitational Waves with LISA
Jonas El Gammal, Aya Ghaleb, Gabriele Franciolini +17
Many early universe scenarios predict an enhancement of scalar perturbations at scales currently unconstrained by cosmological probes. These perturbations source gravitational wave…
astro-ph.CO2025
Revisiting the Chern-Simons interaction during inflation with a non-canonical pseudo-scalar
Jun'ya Kume, Marco Peloso, Nicola Bartolo
A Chern-Simons interaction between a pseudo-scalar field and a U(1) gauge field results in the generation of a chiral gravitational wave background. The detection of this signal is…
gr-qc2024
Assessing the Impact of Unequal Noises and Foreground Modeling on SGWB Reconstruction with LISA
Jun'ya Kume, Marco Peloso, Mauro Pieroni +1
In the search for stochastic gravitational wave backgrounds (SGWB) of cosmological origin with LISA, it is crucial to account for realistic complications in the noise and astrophys…