Two fixes for spontaneous baryogenesis, one working better than the other

Spontaneous baryogenesis ties the matter-antimatter asymmetry to the rolling of a scalar field during reheating. Two modifications are tested: coupling the inflaton non-minimally to gravity raises its effective mass, boosting decays into fermion-antifermion pairs via baryon-number-violating processes enough to match the observed baryon-to-entropy ratio. A second extension adds a complex spectator field coupled both to the inflaton and to gravity, which enhances asymmetry production but still undershoots the measured value, ruling it out as a standalone solution.