update qiskit/qasm/libs/qelib1.inc according to Qiskit#2755

1ucian0 · Nov 15, 2019 · cd8def7 · cd8def7
1 parent 04cc7a1
commit cd8def7
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/qiskit/extensions/standard/cu3.py b/qiskit/extensions/standard/cu3.py
@@ -35,8 +35,11 @@ def __init__(self, theta, phi, lam):
     def _define(self):
         """
         gate cu3(theta,phi,lambda) c, t
-        { u1((lambda+phi)/2) c; u1((lambda-phi)/2) t; cx c,t;
-          u3(-theta/2,0,-(phi+lambda)/2) t; cx c,t;
+        { u1((lambda+phi)/2) c;
+          u1((lambda-phi)/2) t;
+          cx c,t;
+          u3(-theta/2,0,-(phi+lambda)/2) t;
+          cx c,t;
           u3(theta/2,phi,0) t;
         }
         """

diff --git a/qiskit/qasm/libs/qelib1.inc b/qiskit/qasm/libs/qelib1.inc
@@ -98,6 +98,7 @@ gate cu1(lambda) a,b
 gate cu3(theta,phi,lambda) c, t
 {
   // implements controlled-U(theta,phi,lambda) with  target t and control c
+  u1((lambda+phi)/2) c;
   u1((lambda-phi)/2) t;
   cx c,t;
   u3(-theta/2,0,-(phi+lambda)/2) t;