Fix bug in TGate.as_cirq_op when is_adjoint=True (#826)

* Fix bug in TGate.as_cirq_op when is_adjoint=True * Fix pylint
quantumlib · Mar 26, 2024 · d0d6bd1 · d0d6bd1
1 parent 722ab05
commit d0d6bd1
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/qualtran/bloqs/basic_gates/t_gate.py b/qualtran/bloqs/basic_gates/t_gate.py
@@ -104,7 +104,8 @@ def as_cirq_op(
         import cirq
 
         (q,) = q
-        return cirq.T(q), {'q': np.array([q])}
+        p = -1 if self.is_adjoint else 1
+        return cirq.T(q) ** p, {'q': np.array([q])}
 
     def pretty_name(self) -> str:
         maybe_dag = '†' if self.is_adjoint else ''

diff --git a/qualtran/bloqs/basic_gates/t_gate_test.py b/qualtran/bloqs/basic_gates/t_gate_test.py
@@ -35,9 +35,10 @@ def test_to_cirq():
     bb = BloqBuilder()
     q = bb.add(PlusState())
     q = bb.add(TGate(), q=q)
+    q = bb.add(TGate(is_adjoint=True), q=q)
     cbloq = bb.finalize(q=q)
     circuit, _ = cbloq.to_cirq_circuit()
-    cirq.testing.assert_has_diagram(circuit, "_c(0): ───H───T───")
+    cirq.testing.assert_has_diagram(circuit, "_c(0): ───H───T───T^-1───")
 
 
 def test_tensors():