SectionHamiltonian Type float Default 2.0023193043768
The gyromagnetic ratio of the electron. This is of course a physical
constant, and the default value is the exact one that you should not
touch, unless:
(i) You want to disconnect the anomalous Zeeman term in the Hamiltonian
(then set it to zero; this number only affects that term);
(ii) You are using an effective Hamiltonian, as is the case when
you calculate a 2D electron gas, in which case you have an effective
gyromagnetic factor that depends on the material.