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guanmingchiu pushed a commit to branch main
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The following commit(s) were added to refs/heads/main by this push:
new dcd95e956 MAHOUT-608: handle 0-qubit circuits in cirq backend to
prevent crash
dcd95e956 is described below
commit dcd95e956e676c938e4079578de77f6eea3e7d8b
Author: Shivam Mittal <[email protected]>
AuthorDate: Wed Nov 12 15:14:33 2025 +0530
MAHOUT-608: handle 0-qubit circuits in cirq backend to prevent crash
---
qumat/cirq_backend.py | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/qumat/cirq_backend.py b/qumat/cirq_backend.py
index 075751619..735ff8f4b 100644
--- a/qumat/cirq_backend.py
+++ b/qumat/cirq_backend.py
@@ -96,6 +96,11 @@ def apply_pauli_z_gate(circuit, qubit_index):
def execute_circuit(circuit, backend, backend_config):
+ # handle 0-qubit circuits before adding measurements
+ if not circuit.all_qubits():
+ shots = backend_config["backend_options"].get("shots", 1)
+ return [{0: shots}]
+
# Ensure measurement is added to capture the results
if not circuit.has_measurements():
circuit.append(cirq.measure(*circuit.all_qubits(), key="result"))
