From 980f38c5d0f26524d5448b56a6439072be11121c Mon Sep 17 00:00:00 2001
From: burgholzer <burgholzer@me.com>
Date: Tue, 3 Oct 2023 10:28:39 +0200
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20fix=20output=20permutation=20ded?=
 =?UTF-8?q?uction?=
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Signed-off-by: burgholzer <burgholzer@me.com>
---
 src/python/qiskit/QuantumCircuit.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/python/qiskit/QuantumCircuit.cpp b/src/python/qiskit/QuantumCircuit.cpp
index 590b108ff..56a683ac4 100644
--- a/src/python/qiskit/QuantumCircuit.cpp
+++ b/src/python/qiskit/QuantumCircuit.cpp
@@ -468,11 +468,13 @@ void qc::qiskit::QuantumCircuit::importInitialLayout(qc::QuantumComputation& qc,
   const auto physicalQubits =
       layout.attr("get_physical_bits")().cast<py::dict>();
 
-  // create initial layout
+  // create initial layout (and assume identical output permutation)
   for (const auto& [physicalQubit, logicalQubit] : physicalQubits) {
     if (logicalQubitIndices.contains(logicalQubit)) {
       qc.initialLayout[physicalQubit.cast<Qubit>()] =
           logicalQubitIndices[logicalQubit].cast<Qubit>();
+      qc.outputPermutation[physicalQubit.cast<Qubit>()] =
+          logicalQubitIndices[logicalQubit].cast<Qubit>();
     }
   }
 }