emmanuelschaan / forque

Forecast noise for CMB lensing quadratic estimators from temperature and polarization.

ForQuE

Computes the noise power spectrum for CMB lensing quadratic estimators for any CMB experiment, using Monte Carlo integration:

• Standard quadratic estimators from Hu & Okamoto 2002 from temperature and polarization. The minimum-variance estimator takes into account the noise covariance of the various quadratic estimators.
• Shear and magnification estimators of https://arxiv.org/abs/1804.06403
• Multipole lensing estimators of https://arxiv.org/abs/1804.06403

Requires the Monte Carlo library vegas (https://pypi.org/project/vegas):

pip install vegas

Clone the repository, then compute the lensing noise with:

python example_cmblensrec.py

or look at example_cmblensrec.ipynb.

Hope you find this code useful! Please cite https://arxiv.org/abs/1607.01761 and https://arxiv.org/abs/1804.06403 if you use this code in a publication. Do not hesitate to contact me with any questions: [email protected]