Merge branch 'master' into ad/level-in-draw

PennyLaneAI · Jun 19, 2024 · 399ee53 · 399ee53
2 parents f3a18c7 + ab8b6d5
commit 399ee53
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diff --git a/doc/releases/changelog-dev.md b/doc/releases/changelog-dev.md
@@ -128,6 +128,9 @@
    optional argument to specify a list of measurements to be performed at the end of the circuit, just like `from_qiskit`.
    [(#5818)](https://github.com/PennyLaneAI/pennylane/pull/5818)
 
+* Add more fermionic-to-qubit tests to cover cases when the mapped operator is different for various mapping schemes.
+  [(#5873)](https://github.com/PennyLaneAI/pennylane/pull/5873)
+
 <h4>Mid-circuit measurements and dynamic circuits</h4>
 
 * The `default.qubit` device implements a depth-first tree-traversal algorithm to

diff --git a/tests/fermi/test_bravyi_kitaev.py b/tests/fermi/test_bravyi_kitaev.py
@@ -929,6 +929,7 @@ def test_bravyi_kitaev_for_null_operator_fermi_word_ps(operator):
 fw3 = FermiWord({(0, 0): "+", (1, 3): "-", (2, 0): "+", (3, 4): "-"})
 fw4 = FermiWord({})
 fw5 = FermiWord({(0, 3): "+", (1, 2): "-"})
+fw6 = FermiWord({(0, 1): "+", (1, 4): "-"})
 
 
 def test_empty_fermi_sentence():
@@ -1012,6 +1013,36 @@ def test_fermi_sentence_identity():
             }
         ),
     ),
+    (
+        FermiSentence({fw6: 1, fw2: 2}),
+        5,
+        PauliSentence(
+            {
+                PauliWord({0: "I"}): 1.0,
+                PauliWord({0: "Z"}): -1.0,
+                PauliWord({0: "Z", 1: "X", 3: "Y", 4: "X"}): -0.25j,
+                PauliWord({0: "Z", 1: "X", 3: "Y", 4: "Y"}): 0.25,
+                PauliWord({1: "Y", 3: "Y", 4: "X"}): -0.25,
+                PauliWord({1: "Y", 3: "Y", 4: "Y"}): -0.25j,
+            }
+        ),
+    ),
+    (
+        FermiSentence({fw5: 1, fw6: 1}),
+        5,
+        PauliSentence(
+            {
+                PauliWord({0: "Z", 1: "X", 3: "Y", 4: "X"}): -0.25j,
+                PauliWord({0: "Z", 1: "X", 3: "Y", 4: "Y"}): 0.25,
+                PauliWord({1: "Y", 3: "Y", 4: "X"}): -0.25,
+                PauliWord({1: "Y", 3: "Y", 4: "Y"}): -0.25j,
+                PauliWord({1: "Z", 2: "X", 3: "Z"}): -0.25,
+                PauliWord({1: "Z", 2: "Y", 3: "Z"}): -0.25j,
+                PauliWord({2: "X"}): 0.25,
+                PauliWord({2: "Y"}): 0.25j,
+            }
+        ),
+    ),
 ]
 
 

diff --git a/tests/fermi/test_fermi_mapping.py b/tests/fermi/test_fermi_mapping.py
@@ -774,6 +774,8 @@ def test_jordan_wigner_for_null_operator_fermi_word_ps(operator):
 fw2 = FermiWord({(0, 0): "+", (1, 0): "-"})
 fw3 = FermiWord({(0, 0): "+", (1, 3): "-", (2, 0): "+", (3, 4): "-"})
 fw4 = FermiWord({})
+fw5 = FermiWord({(0, 3): "+", (1, 2): "-"})
+fw6 = FermiWord({(0, 1): "+", (1, 4): "-"})
 
 
 def test_empty_fermi_sentence():
@@ -839,6 +841,49 @@ def test_fermi_sentence_identity():
             }
         ),
     ),
+    (
+        FermiSentence({fw1: -2, fw5: 1j}),
+        PauliSentence(
+            {
+                PauliWord({0: "X", 1: "X"}): -0.5,
+                PauliWord({0: "X", 1: "Y"}): -0.5j,
+                PauliWord({0: "Y", 1: "X"}): 0.5j,
+                PauliWord({0: "Y", 1: "Y"}): -0.5,
+                PauliWord({2: "X", 3: "X"}): 0.25j,
+                PauliWord({2: "X", 3: "Y"}): 0.25,
+                PauliWord({2: "Y", 3: "X"}): -0.25,
+                PauliWord({2: "Y", 3: "Y"}): 0.25j,
+            }
+        ),
+    ),
+    (
+        FermiSentence({fw6: 1, fw2: 2}),
+        PauliSentence(
+            {
+                PauliWord({0: "I"}): 1.0,
+                PauliWord({0: "Z"}): -1.0,
+                PauliWord({1: "X", 2: "Z", 3: "Z", 4: "X"}): 0.25,
+                PauliWord({1: "X", 2: "Z", 3: "Z", 4: "Y"}): 0.25j,
+                PauliWord({1: "Y", 2: "Z", 3: "Z", 4: "X"}): -0.25j,
+                PauliWord({1: "Y", 2: "Z", 3: "Z", 4: "Y"}): 0.25,
+            }
+        ),
+    ),
+    (
+        FermiSentence({fw5: 1, fw6: 1}),
+        PauliSentence(
+            {
+                PauliWord({1: "X", 2: "Z", 3: "Z", 4: "X"}): 0.25,
+                PauliWord({1: "X", 2: "Z", 3: "Z", 4: "Y"}): 0.25j,
+                PauliWord({1: "Y", 2: "Z", 3: "Z", 4: "X"}): -0.25j,
+                PauliWord({1: "Y", 2: "Z", 3: "Z", 4: "Y"}): 0.25,
+                PauliWord({2: "X", 3: "X"}): 0.25,
+                PauliWord({2: "X", 3: "Y"}): -0.25j,
+                PauliWord({2: "Y", 3: "X"}): 0.25j,
+                PauliWord({2: "Y", 3: "Y"}): 0.25,
+            }
+        ),
+    ),
 ]
 
 

diff --git a/tests/fermi/test_parity_mapping.py b/tests/fermi/test_parity_mapping.py
@@ -948,6 +948,8 @@ def test_parity_transform_for_null_operator_fermi_word_ps(operator):
 fw2 = FermiWord({(0, 0): "+", (1, 0): "-"})
 fw3 = FermiWord({(0, 0): "+", (1, 3): "-", (2, 0): "+", (3, 4): "-"})
 fw4 = FermiWord({})
+fw5 = FermiWord({(0, 3): "+", (1, 2): "-"})
+fw6 = FermiWord({(0, 1): "+", (1, 4): "-"})
 
 
 def test_empty_fermi_sentence():
@@ -1015,6 +1017,52 @@ def test_fermi_sentence_identity():
             }
         ),
     ),
+    (
+        FermiSentence({fw1: -2, fw5: 1j}),
+        4,
+        PauliSentence(
+            {
+                PauliWord({0: "X"}): -0.5,
+                PauliWord({0: "X", 1: "Z"}): 0.5,
+                PauliWord({0: "Y"}): 0.5j,
+                PauliWord({0: "Y", 1: "Z"}): -0.5j,
+                PauliWord({1: "Z", 2: "X", 3: "Z"}): -0.25j,
+                PauliWord({1: "Z", 2: "Y"}): -0.25,
+                PauliWord({2: "X"}): 0.25j,
+                PauliWord({2: "Y", 3: "Z"}): 0.25,
+            }
+        ),
+    ),
+    (
+        FermiSentence({fw6: 1, fw2: 2}),
+        5,
+        PauliSentence(
+            {
+                PauliWord({0: "I"}): 1.0,
+                PauliWord({0: "Z"}): -1.0,
+                PauliWord({0: "Z", 1: "X", 2: "X", 3: "X", 4: "Z"}): -0.25,
+                PauliWord({0: "Z", 1: "X", 2: "X", 3: "Y"}): -0.25j,
+                PauliWord({1: "Y", 2: "X", 3: "X", 4: "Z"}): 0.25j,
+                PauliWord({1: "Y", 2: "X", 3: "Y"}): -0.25,
+            }
+        ),
+    ),
+    (
+        FermiSentence({fw5: 1, fw6: 1}),
+        5,
+        PauliSentence(
+            {
+                PauliWord({0: "Z", 1: "X", 2: "X", 3: "X", 4: "Z"}): -0.25,
+                PauliWord({0: "Z", 1: "X", 2: "X", 3: "Y"}): -0.25j,
+                PauliWord({1: "Y", 2: "X", 3: "X", 4: "Z"}): 0.25j,
+                PauliWord({1: "Y", 2: "X", 3: "Y"}): -0.25,
+                PauliWord({1: "Z", 2: "X", 3: "Z"}): -0.25,
+                PauliWord({1: "Z", 2: "Y"}): 0.25j,
+                PauliWord({2: "X"}): 0.25,
+                PauliWord({2: "Y", 3: "Z"}): -0.25j,
+            }
+        ),
+    ),
 ]