2CX model

[mingrisch]

Implementing this 4-parameter model into the package requires:

• adapting the residue function
• adapt the methods that convert parameters
• minor adjustments for the bootstrapping

[mingrisch]

Parameterize according to Sourbron Buckley, http://iopscience.iop.org/0031-9155/57/2/R1

[mingrisch]

comparing the notations of my PhD thesis and the SB paper yields:

• T_B in my thesis equals T_c in the SB paper
• T_e in my thesis equals T_e in the SB paper
• T_p = \frac{v_p}{PS+FP} in my thesis is not equal to T=\frac{v_p + v_e}{F_P} in the SB paper

Lengthy calculations yield:

• ($K\pm$) in my PhD thesis, pg 54, is equivalent to $\sigma\pm in the Sourbron Buckley paper, both have units 1/s

The residue function of the 2CX model in the SB is equivalent to the (admittedly simpler) residue function in my PhD thesis (says sage, please see here).

All in all, we should be o.k. with using the SB notation and parametrization.

[mingrisch]

Resolved by @AndreasMittermeier and me.

One day, we could change the notation to the buckley paper. However, this implementation is equivalent and slightly less confusing.