Figure 4
From: Long-range Cooper pair splitter with high entanglement production rate
(a) Schematic of entangled states between opposite and equal energy levels. (b) Entanglement production rate 
as a function of bias voltage for different Z2. The relevant parameters are set as L = 8ξ0, Z1 = 1.25, is = −0.5, kF = 100/ξ0.
