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gr-qc2026
Beyond-eikonal diffraction integral in gravitational lensing
Emma Bruyère, Giulia Cusin, Cyril Pitrou
We revisit the derivation of the diffraction integral, which is an approximate evaluation of the Kirchhoff integral, widely used in the literature for phenomenological applications…
gr-qc2026
Probing the Kinematic Dipole with LISA: an analytical treatment
Jacopo Fumagalli, Giulia Cusin, Cyril Pitrou +1
The motion of the Solar System with respect to the cosmic rest frame induces a kinematic dipole in the stochastic gravitational-wave background (GWB). Detecting this signal with sp…
gr-qc2026
Gravitational lensing beyond the eikonal approximation
Emma Bruyère, Cyril Pitrou
Waves propagating through a gravitational potential exhibit wave-optics effects when their wavelength is not significantly smaller than the lensing scales. We study the propagation…