Figure 1:
State parameters
w
ϕ
(
z
)
have been plotted against the red-shift parameter
z
(with
f
=
0.5
,
h
=
0.65
,
t
0
=
13
Gyr
,
ρ
m
0
≈
0.63
). Smooth double crossing of the Cosmological constant barrier is observed at sufficiently later epoch,
z
≈
1.8
from above and
z
≈
0.44
from below.
