Creating the LightningTensor device class based on the new API

.github/CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ### New features since last release
 
+* Add Python class for the `lightning.tensor` device which uses the new device API and the interface for `quimb` based on the MPS method.
+  [(#671)](https://github.com/PennyLaneAI/pennylane-lightning/pull/671)
+
 * Add compile-time support for AVX2/512 streaming operations in `lightning.qubit`.
   [(#664)](https://github.com/PennyLaneAI/pennylane-lightning/pull/664)
 
@@ -133,7 +136,7 @@
 
 This release contains contributions from (in alphabetical order):
 
-Ali Asadi, Amintor Dusko, Christina Lee, Vincent Michaud-Rioux, Lee James O'Riordan, Mudit Pandey, Shuli Shu
+Ali Asadi, Amintor Dusko, Pietropaolo Frisoni, Christina Lee, Vincent Michaud-Rioux, Lee James O'Riordan, Mudit Pandey, Shuli Shu
 
 ---
 

.github/workflows/tests_linux_python.yml

@@ -37,7 +37,7 @@ jobs:
       matrix:
         os: [ubuntu-22.04]
         pl_backend: ["lightning_qubit"]
-    timeout-minutes: 60
+    timeout-minutes: 75
     name: Python tests
     runs-on: ${{ matrix.os }}
 
@@ -144,7 +144,7 @@ jobs:
       matrix:
         os: [ubuntu-22.04]
         pl_backend: ["lightning_qubit"]
-    timeout-minutes: 60
+    timeout-minutes: 75
     name: Python tests with OpenBLAS
     runs-on: ${{ matrix.os }}
 
@@ -257,7 +257,7 @@ jobs:
         exclude:
           - pl_backend: ["all"]
             exec_model: OPENMP
-    timeout-minutes: 60
+    timeout-minutes: 75
     name: Python tests with Kokkos
     runs-on: ${{ matrix.os }}
 

pennylane_lightning/core/_version.py

@@ -16,4 +16,4 @@
    Version number (major.minor.patch[-label])
 """
 
-__version__ = "0.36.0-dev43"
+__version__ = "0.36.0-dev44"

pennylane_lightning/lightning_tensor/__init__.py

@@ -0,0 +1,18 @@
+# Copyright 2018-2024 Xanadu Quantum Technologies Inc.
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""PennyLane lightning_tensor package."""
+
+from pennylane_lightning.core import __version__
+
+from .lightning_tensor import LightningTensor