use sum, not norm

Qiskit · Mar 9, 2023 · b22df7c · b22df7c
1 parent 086e9d7
commit b22df7c
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diff --git a/qiskit/quantum_info/states/densitymatrix.py b/qiskit/quantum_info/states/densitymatrix.py
@@ -484,7 +484,7 @@ def probabilities(self, qargs=None, decimals=None):
             probs = probs.round(decimals=decimals)
 
         # to account for roundoff errors, we renormalize and clip
-        probs = np.clip(probs / np.linalg.norm(probs), a_min=0, a_max=1)
+        probs = np.clip(probs / np.sum(probs), a_min=0, a_max=1)
         return probs
 
     def reset(self, qargs=None):

diff --git a/qiskit/quantum_info/states/statevector.py b/qiskit/quantum_info/states/statevector.py
@@ -579,7 +579,7 @@ def probabilities(self, qargs=None, decimals=None):
             probs = probs.round(decimals=decimals)
 
         # to account for roundoff errors, we renormalize and clip
-        probs = np.clip(probs / np.linalg.norm(probs), a_min=0, a_max=1)
+        probs = np.clip(probs / np.sum(probs), a_min=0, a_max=1)
         return probs
 
     def reset(self, qargs=None):