Positive potential derivative#518
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Jobilthomas wants to merge 4 commits into
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bug fix. changed ppm->potential to ppm->potential_derivative in line 4209 of input.c
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Hey, I was working with a hybrid inflation model with a positive derivative of potential (dV/dphi). Since CLASS is written exclusively for negative potential I had to find and modify for my positive derivative model.
Here in this pull request I have generalized the code so that the code will work for both positive and negative potential derivative. Also it is done on top of the "primordial-bug-fix" pull request that I did recently.
Changes
Added a new parameter, "potential_derivative", so that users can specify whether derivative is positive or negative (default = negative)
Modified primordial_inflation_evolve_background
Modified primordial_inflation_check_potential
Modified primordial_inflation_find_phi_pivot