Update poetry to using CUDA12, fix the paths in refactored cuquantum code.

pyproject.toml

@@ -23,16 +23,17 @@ packages = [{ include = "qibotn", from = "src" }]
 python = ">=3.11,<3.14"
 qibo = { git="https://github.com/qiboteam/qibo", branch="expectation"}
 quimb = { version = "^1.10.0", extras = ["tensor"] }
-cupy-cuda11x = { version = "^13.1.0", optional = true }
-cuquantum-python-cu11 = { version = "^24.1.0", optional = true }
+cupy-cuda12x = { version = "^13.6.0", optional = true }
+cuda-toolkit = {extras = ["all"], version = "^12.9.1"}
+cuquantum-python-cu12 = { version = "^25.9.1", optional = true }
 qmatchatea = { version = "^1.4.3", optional = true }
 qiskit = { version = "^1.4.0", optional = true }
 qtealeaves = { version = "^1.5.20", optional = true }
 
 
 [tool.poetry.extras]
-cuda = ["cupy-cuda11x", "cuquantum-python-cu11", "mpi4py"]
-qmatchatea = ["qmatchatea", "qtealeaves", "qiskit"]
+cuda = ["cupy-cuda12x", "cuda-toolkit", "cuquantum-python-cu12", "mpi4py"]
+qmatchatea = ["qmatchatea"]
 
 [tool.poetry.group.docs]
 optional = true

src/qibotn/circuit_to_mps.py

@@ -1,6 +1,7 @@
 import cupy as cp
 import numpy as np
-from cuquantum import cutensornet as cutn
+# from cuquantum import tensornet as cutn
+import cuquantum.bindings.cutensornet as cutn
 
 from qibotn.circuit_convertor import QiboCircuitToEinsum
 from qibotn.mps_utils import apply_gate, initial

src/qibotn/eval.py

@@ -1,8 +1,9 @@
 import cupy as cp
-import cuquantum.cutensornet as cutn
+# import cuquantum.tensornet as cutn
+import cuquantum.bindings.cutensornet as cutn
 from cupy.cuda import nccl
 from cupy.cuda.runtime import getDeviceCount
-from cuquantum import Network, contract
+from cuquantum.tensornet import Network, contract
 from mpi4py import MPI
 from qibo import hamiltonians
 from qibo.symbols import I, X, Y, Z

src/qibotn/mps_contraction_helper.py

@@ -1,4 +1,4 @@
-from cuquantum import contract, contract_path
+from cuquantum.tensornet import contract, contract_path
 
 # Reference: https://github.com/NVIDIA/cuQuantum/blob/main/python/samples/cutensornet/tn_algorithms/mps_algorithms.ipynb
 

src/qibotn/mps_utils.py

@@ -1,6 +1,6 @@
 import cupy as cp
-from cuquantum import contract
-from cuquantum.cutensornet.experimental import contract_decompose
+from cuquantum.tensornet import contract
+from cuquantum.tensornet.experimental import contract_decompose
 
 
 def initial(num_qubits, dtype):