def test_1_qubit_identities(self):
"""Tests identities for 1-qubit gates"""
# T*X*T = X
circ1 = QuantumCircuit(1)
circ1.t(0)
circ1.x(0)
circ1.t(0)
elem1 = CNOTDihedral(circ1)
elem = CNOTDihedral(XGate())
self.assertEqual(elem1, elem, "Error: 1-qubit identity does not hold")
# X*T*X = Tdg
circ1 = QuantumCircuit(1)
circ1.x(0)
circ1.t(0)
circ1.x(0)
elem1 = CNOTDihedral(circ1)
elem = CNOTDihedral(TdgGate())
self.assertEqual(elem1, elem, "Error: 1-qubit identity does not hold")
# X*Tdg*X = T
circ1 = QuantumCircuit(1)
circ1.x(0)
circ1.tdg(0)
circ1.x(0)
elem1 = CNOTDihedral(circ1)
elem = CNOTDihedral(TGate())
self.assertEqual(elem1, elem, "Error: 1-qubit identity does not hold")
# X*S*X = Sdg
circ1 = QuantumCircuit(1)
circ1.x(0)
circ1.s(0)
circ1.x(0)
elem1 = CNOTDihedral(circ1)
elem = CNOTDihedral(SdgGate())
self.assertEqual(elem1, elem, "Error: 1-qubit identity does not hold")
# X*Sdg*X = S
circ1 = QuantumCircuit(1)
circ1.x(0)
circ1.sdg(0)
circ1.x(0)
elem1 = CNOTDihedral(circ1)
elem = CNOTDihedral(SGate())
self.assertEqual(elem1, elem, "Error: 1-qubit identity does not hold")
# T*X*Tdg = S*X
circ1 = QuantumCircuit(1)
circ1.t(0)
circ1.x(0)
circ1.tdg(0)
circ2 = QuantumCircuit(1)
circ2.s(0)
circ2.x(0)
elem1 = CNOTDihedral(circ1)
elem2 = CNOTDihedral(circ2)
self.assertEqual(elem1, elem2, "Error: 1-qubit identity does not hold")
def test_inverse_with_different_names(self):
"""Test that inverse gates that have different names."""
qc = QuantumCircuit(2, 2)
qc.t(0)
qc.tdg(0)
pass_ = InverseCancellation([(TGate(), TdgGate())])
pm = PassManager(pass_)
new_circ = pm.run(qc)
gates_after = new_circ.count_ops()
self.assertNotIn("t", gates_after)
self.assertNotIn("tdg", gates_after)
def random_cnotdihedral_circuit(num_qubits, num_gates, gates='all', seed=None):
"""Generate a pseudo random CNOTDihedral circuit."""
if gates == 'all':
if num_qubits == 1:
gates = ['i', 'x', 'y', 'z', 't', 'tdg', 's', 'sdg']
else:
gates = [
'i', 'x', 'y', 'z', 't', 'tdg', 's', 'sdg', 'cx', 'cz',
'swap'
]
instructions = {
'i': (IGate(), 1),
'x': (XGate(), 1),
'y': (YGate(), 1),
'z': (ZGate(), 1),
's': (SGate(), 1),
'sdg': (SdgGate(), 1),
't': (TGate(), 1),
'tdg': (TdgGate(), 1),
'cx': (CXGate(), 2),
'cz': (CZGate(), 2),
'swap': (SwapGate(), 2)
}
if isinstance(seed, np.random.Generator):
rng = seed
else:
rng = np.random.default_rng(seed)
samples = rng.choice(gates, num_gates)
circ = QuantumCircuit(num_qubits)
for name in samples:
gate, nqargs = instructions[name]
qargs = rng.choice(range(num_qubits), nqargs, replace=False).tolist()
circ.append(gate, qargs)
return circ
def random_cnotdihedral_circuit(num_qubits, num_gates, gates="all", seed=None):
"""Generate a pseudo random CNOTDihedral circuit."""
if gates == "all":
if num_qubits == 1:
gates = ["i", "x", "y", "z", "t", "tdg", "s", "sdg"]
else:
gates = [
"i", "x", "y", "z", "t", "tdg", "s", "sdg", "cx", "cz", "swap"
]
instructions = {
"i": (IGate(), 1),
"x": (XGate(), 1),
"y": (YGate(), 1),
"z": (ZGate(), 1),
"s": (SGate(), 1),
"sdg": (SdgGate(), 1),
"t": (TGate(), 1),
"tdg": (TdgGate(), 1),
"cx": (CXGate(), 2),
"cz": (CZGate(), 2),
"swap": (SwapGate(), 2),
}
if isinstance(seed, np.random.Generator):
rng = seed
else:
rng = np.random.default_rng(seed)
samples = rng.choice(gates, num_gates)
circ = QuantumCircuit(num_qubits)
for name in samples:
gate, nqargs = instructions[name]
qargs = rng.choice(range(num_qubits), nqargs, replace=False).tolist()
circ.append(gate, qargs)
return circ
from qiskit.circuit.library import HGate, XGate, YGate, ZGate, CXGate, CYGate, CZGate, CHGate
from qiskit.circuit.library import SwapGate, IGate, SGate, TGate, TdgGate, SdgGate, RYGate
from qiskit import QuantumCircuit, Aer, execute, QuantumRegister, ClassicalRegister
import numpy as np
SINGLE_GATE_DICT = {
'I' : IGate(),
'H' : HGate(),
'X' : XGate(),
'Y' : YGate(),
'Z' : ZGate(),
'S' : SGate(),
'T' : TGate(),
'T_dg' : TdgGate(),
'S_dg' : SdgGate(),
'Ry' : RYGate(np.pi / 4)
}
CONTROLLED_GATE_DICT = {
'CX0' : CXGate(),
'CX1' : CXGate(),
'CY0' : CYGate(),
'CY1' : CYGate(),
'CZ0' : CZGate(),
'CZ1' : CYGate(),
'CH0' : CHGate(),
'CH1' : CHGate()
}
def _state_to_gates(state):