Update cirq-core requirement from <1.4.0,>=1.0.0 to >=1.0.0,<1.5.0

docs/source/examples/rshadows_tutorial.md

@@ -77,9 +77,8 @@ num_qubits = 8
 qubits: List[cirq.Qid] = cirq.LineQubit.range(num_qubits)
 
 if download_ising_circuits:
-    with open(f"{file_directory}/rshadows-tutorial-1D_Ising_g=1_{num_qubits}qubits.pkl", "rb") as file:
-        old_cirq_circuit = pickle.load(file)
-        circuit = cirq.Circuit(old_cirq_circuit.all_operations())
+    with open(f"{file_directory}/rshadows-tutorial-1D_Ising_g=1_{num_qubits}qubits.json", "rb") as file:
+        circuit = cirq.read_json(json_text=file.read())
     g = 1
 
 # or user can import from tensorflow_quantum
@@ -499,9 +498,8 @@ Import groud state of 1-D Ising model with periodic boundary condition
 num_qubits = 16
 qubits = cirq.LineQubit.range(num_qubits)
 if download_ising_circuits:
-    with open(f"{file_directory}/rshadows-tutorial-1D_Ising_g=1_{num_qubits}qubits.pkl", "rb") as file:
-        old_cirq_circuit = pickle.load(file)
-        circuit = cirq.Circuit(old_cirq_circuit.all_operations())
+    with open(f"{file_directory}/rshadows-tutorial-1D_Ising_g=1_{num_qubits}qubits.json", "rb") as file:
+        circuit = cirq.read_json(json_text=file.read())
     g = 1
 else:
     qbs = cirq.GridQubit.rect(num_qubits, 1)
@@ -515,7 +513,7 @@ else:
     circuit = circuit.transform_qubits(qubit_map=qubit_map)
 ```
 
-Define obersevables lists as two point correlation functions between the first qubit and the rest of the qubits $\{\langle Z_0 Z_i\rangle\}_{0\geq i\leq n-1}$
+Define a list of observables as two point correlation functions between the first qubit and every other qubit $\{\langle Z_0 Z_i\rangle\}_{0\leq i\leq n-1}$.
 
 
 ```{code-cell} ipython3

mitiq/benchmarks/randomized_benchmarking.py

@@ -16,7 +16,7 @@
 import numpy as np
 from cirq.experiments.qubit_characterizations import (
     _find_inv_matrix,
-    _gate_seq_to_mats,
+    _reduce_gate_seq,
     _single_qubit_cliffords,
     _two_qubit_clifford,
     _two_qubit_clifford_matrices,
@@ -60,20 +60,14 @@ def generate_rb_circuits(
     rng = np.random.RandomState(seed)
     if n_qubits == 1:
         c1 = cliffords.c1_in_xy
-        cfd_mat_1q = np.array(
-            [_gate_seq_to_mats(gates) for gates in c1], dtype=np.complex64
-        )
         circuits = []
         clifford_group_size = 24
         for _ in range(trials):
             gate_ids = list(rng.choice(clifford_group_size, num_cliffords))
             gate_sequence = [
                 gate for gate_id in gate_ids for gate in c1[gate_id]
             ]
-            idx = _find_inv_matrix(
-                _gate_seq_to_mats(gate_sequence), cfd_mat_1q
-            )
-            gate_sequence.extend(c1[idx])
+            gate_sequence.append(_reduce_gate_seq(gate_sequence) ** -1)
             circuits.append(
                 cirq.Circuit(gate(qubits[0]) for gate in gate_sequence)
             )

requirements/requirements-braket.txt

@@ -1,2 +1,2 @@
 amazon-braket-sdk~=1.69.0
-cirq-ionq>=1.0.0,<1.4.0
+cirq-ionq>=1.4.0,<1.5.0

requirements/requirements-cirq.txt

@@ -1,4 +1,4 @@
 # This file is redundant, since Cirq is the core internal representation
 # for quantum circuits in Mitiq.
 # Keeping this file anyway for consistency with other integrations.
-cirq-core>=1.0.0,<1.4.0
+cirq-core>=1.4.0,<1.5.0

requirements/requirements-pyquil.txt

@@ -1,2 +1,2 @@
 pyquil~=3.5.4
-cirq-rigetti>=1.0.0,<1.4.0
+cirq-rigetti>=1.4.0,<1.5.0

requirements/requirements.txt

@@ -1,4 +1,4 @@
 numpy>=1.22.0
 scipy>=1.10.1,<=1.14.1
-cirq-core>=1.0.0,<1.4.0
+cirq-core>=1.4.0,<1.5.0
 tabulate