# Lensing simulations by Taylor expansion — not so inefficient after all

@article{Naess2013LensingSB, title={Lensing simulations by Taylor expansion — not so inefficient after all}, author={S. Naess and T. Louis}, journal={Journal of Cosmology and Astroparticle Physics}, year={2013}, volume={2013}, pages={001-001} }

Cosmic Microwave Background lensing simulation by Taylor expansion has long been considered impractical due to slow convergence, but a recent flat-sky implementation shows that a simple trick eliminates this problem, making Taylor lensing a fast and simple lensing algorithm for the flat sky. Here we generalize the method to the full sky, and study its convergence and performance relative to a commonly used numerical code, Lenspix, with extensive benchmarks of both. Compared to the flat sky case… Expand

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