nonlocal games, channel ops, chanel metrics

vprusso · Oct 19, 2023 · 58fda1f · 58fda1f
1 parent 3ee28d5
commit 58fda1f
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Showing 3 changed files with 3 additions and 4 deletions.
diff --git a/tests/test_channel_metrics/test_completely_bounded_trace_norm.py b/tests/test_channel_metrics/test_completely_bounded_trace_norm.py
@@ -16,7 +16,7 @@ def test_cb_trace_norm_unitaries_channel():
     """The diamond norm of phi = id- U id U* is the diameter of the smallest circle that contains the eigenvalues of U."""
     U = 1 / np.sqrt(2) * np.array([[1, 1], [-1, 1]])  # Hadamard gate
     phi = kraus_to_choi([[np.eye(2), np.eye(2)], [U, -U]])
-    lam, eigv = np.linalg.eig(U)
+    lam, _ = np.linalg.eig(U)
     dist = np.abs(lam[:, None] - lam[None, :])  # all to all distance
     diameter = np.max(dist)
     np.testing.assert_equal(

diff --git a/tests/test_channel_ops/test_dual_channel.py b/tests/test_channel_ops/test_dual_channel.py
@@ -75,8 +75,8 @@ def test_dual_channel_choi_dims():
 
 def test_dual_channel_nonsquare_matrix():
     """Dual of a channel that transposes 3x2 matrices."""
-    choi = swap_operator([2, 3])
-    choi_dual = dual_channel(choi, dims=[[3, 2], [2, 3]])
+    choi1 = swap_operator([2, 3])
+    choi_dual = dual_channel(choi1, dims=[[3, 2], [2, 3]])
     expected_choi_dual = np.array(
         [
             [1, 0, 0, 0, 0, 0],

diff --git a/tests/test_nonlocal_games/test_xor_game.py b/tests/test_nonlocal_games/test_xor_game.py
@@ -3,7 +3,6 @@
 
 import numpy as np
 
-from toqito.nonlocal_games.nonlocal_game import NonlocalGame
 from toqito.nonlocal_games.xor_game import XORGame