Added MPS codes

src/qibotn/QiboCircuitToMPS.py

@@ -0,0 +1,24 @@
+import cupy as cp
+import numpy as np
+
+from cuquantum import cutensornet as cutn
+from QiboCircuitConvertor import QiboCircuitToEinsum
+from MPSUtils import get_initial_mps, apply_gate
+
+class QiboCircuitToMPS:
+    def __init__(self,circ_qibo, gate_algo, dtype = 'complex128',rand_seed=0,):
+        np.random.seed(rand_seed)
+        cp.random.seed(rand_seed)
+        
+        self.num_qubits = circ_qibo.nqubits
+        self.handle = cutn.create()
+        self.options = {'handle': self.handle}
+        self.dtype = dtype
+        self.mps_tensors = get_initial_mps(self.num_qubits, dtype=dtype)
+        circuitconvertor = QiboCircuitToEinsum(circ_qibo)
+
+        for (gate, qubits) in circuitconvertor.gate_tensors:
+            # mapping from qubits to qubit indices
+            # apply the gate in-place
+            apply_gate(self.mps_tensors, gate, qubits, algorithm=gate_algo, options=self.options)
+