Figure 4:
The solution
𝜓
(
𝑣
)
=
l
n
(
(
d
n
(
𝑣
,
𝑘
)
+
c
n
(
𝑣
,
𝑘
)
)
/
(
d
n
(
𝑣
,
𝑘
)
−
c
n
(
𝑣
,
𝑘
)
)
)
for the Poisson Boltzmann equation. The parameters are
𝑘
2
=
0
.
7
5
and
𝐾
′
=
1
.
6
8
6
.
