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Multiple choice
A Hamiltonian is written as a weighted sum of Pauli strings:
H
=
0.5
Z
Z
−
1.2
X
I
+
0.3
I
Y
H = 0.5\,ZZ - 1.2\,XI + 0.3\,IY
H
=
0.5
Z
Z
−
1.2
X
I
+
0.3
I
Y
. How many Pauli-string terms does this Hamiltonian contain?
3
1
6
2
Check answer