2 papers
astro-ph.CO2025
Detectable signals of post-Born lensing curl B-modes
Mathew Robertson, Giulio Fabbian, Julien Carron +1
Curl lensing, also known as lensing field-rotation or shear B-modes, is a distinct post-Born observable caused by two lensing deflections at different redshifts (lens-lens coupling…
astro-ph.CO2025
How to detect lensing rotation
Mathew Robertson, Antony Lewis
Gravitational lensing rotation of images is predicted to be negligible at linear order in density perturbations, but can be produced by the post-Born lens-lens coupling at second o…