Modifed Tensor perturbation equation in CAMB equation.f90

Use of Cobaya. camb, CLASS, cosmomc, compilers, etc.
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Yunan Xie
Posts: 1
Joined: June 21 2023
Affiliation: University of Texas at Dallas

Modifed Tensor perturbation equation in CAMB equation.f90

Post by Yunan Xie »

Hi all,

I am currently trying to modify tensor pertrubation equation as described in equation (2) of https://arxiv.org/pdf/1605.03504.pdf and (1) in https://arxiv.org/abs/1408.2224. I am not familiar with how the notaions used in equation.f90, H_chi and shear, are related to the tensor amplitude I would like to calculate. I have checked camb notes and Antony's thesis but they did not solve my problems. Are there other references that might help me out? Thanks so much for your help!!

Best,
Yunan
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