From 01b42ca8db46476f3cc90e6e5fb5c02479866fc1 Mon Sep 17 00:00:00 2001
From: Naohito Nakazawa <117684192+Naohnakazawa@users.noreply.github.com>
Date: Sat, 10 Feb 2024 13:28:20 +0900
Subject: [PATCH] T2Hahn update (Qiskit-Extensions#1238)

---
 qiskit_experiments/library/characterization/t2hahn.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/qiskit_experiments/library/characterization/t2hahn.py b/qiskit_experiments/library/characterization/t2hahn.py
index d804e846c5..b99a6f7acb 100644
--- a/qiskit_experiments/library/characterization/t2hahn.py
+++ b/qiskit_experiments/library/characterization/t2hahn.py
@@ -84,7 +84,10 @@ class T2Hahn(BaseExperiment):
             delays = [float(_)*conversion_factor for _ in delays]
             number_of_echoes = 1
 
-            exp = T2Hahn(physical_qubits=(0, ), delays=delays, num_echoes=number_of_echoes, backend=backend)
+            exp = T2Hahn(physical_qubits=(0, ),
+                         delays=delays,
+                         num_echoes=number_of_echoes,
+                         backend=backend)
             print(exp.circuits()[0])
 
         .. jupyter-execute::