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Multiple choice
A two-qubit Werner state with parameter
p
=
2
/
3
p = 2/3
p
=
2/3
has a partial transpose whose four eigenvalues are
(
1
+
p
)
/
4
(1+p)/4
(
1
+
p
)
/4
,
(
1
+
p
)
/
4
(1+p)/4
(
1
+
p
)
/4
,
(
1
+
p
)
/
4
(1+p)/4
(
1
+
p
)
/4
, and
(
1
−
3
p
)
/
4
(1-3p)/4
(
1
−
3
p
)
/4
. The negativity is the sum of the absolute values of the negative eigenvalues. What is the negativity
N
N
N
?
🔬 try it before you answer
0.0625
0.0
0.25
0.5
Check answer