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Multiple choice
Solving the Schrödinger equation, the survival probability of staying in the initial state is
P
=
cos
2
(
ω
t
/
2
)
P = \cos^2(\omega t/2)
P
=
cos
2
(
ω
t
/2
)
. With
ω
t
=
π
/
3
\omega t = \pi/3
ω
t
=
π
/3
, what is
P
P
P
?
1/4 = 0.25
3/4 = 0.75
1/2 = 0.5
3
/
2
\sqrt{3}/2
3
/2
≈ 0.866
Check answer