Module hybridq.extras.io.cirq
Author: Salvatore Mandra (salvatore.mandra@nasa.gov)
Copyright © 2021, United States Government, as represented by the Administrator of the National Aeronautics and Space Administration. All rights reserved.
The HybridQ: A Hybrid Simulator for Quantum Circuits platform is 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.
Expand source code
"""
Author: Salvatore Mandra (salvatore.mandra@nasa.gov)
Copyright © 2021, United States Government, as represented by the Administrator
of the National Aeronautics and Space Administration. All rights reserved.
The HybridQ: A Hybrid Simulator for Quantum Circuits platform is 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.
"""
from __future__ import annotations
from hybridq.circuit import Circuit
from hybridq.gate import Gate
from hybridq.gate.property import QubitGate, ParamGate
from tqdm.auto import tqdm
import numpy as np
import cirq
def to_cirq(circuit: Circuit,
qubits_map: dict[any, any] = None,
verbose: bool = False) -> cirq.Circuit:
"""
Convert `Circuit` to `cirq.Circuit`.
Parameters
----------
circuit: Circuit
`Circuit` to convert to `cirq.Circuit`.
qubits_map: dict[any, any], optional
How to map qubits in `Circuit` to `cirq.Circuit`. if not provided,
`cirq.LineQubit`s are used and automatically mapped to `Circuit`'s
qubits.
verbose: bool, optional
Verbose output.
Returns
-------
cirq.Circuit
`cirq.Circuit` obtained from `Circuit`.
Example
-------
>>> from hybridq.extras.cirq import to_cirq
>>> c = Circuit(Gate('H', qubits=[q]) for q in range(3))
>>> c.append(Gate('CX', qubits=[0, 1]))
>>> c.append(Gate('CX', qubits=[2, 0]))
>>> c.append(Gate('CX', qubits=[1, 2]))
>>> to_cirq(c)
0: ───H───@───X───────
│ │
1: ───H───X───┼───@───
│ │
2: ───H───────@───X───
"""
_to_cirq_naming = {
'I': lambda params: cirq.I,
'P': lambda params: cirq.S,
'T': lambda params: cirq.T,
'X': lambda params: cirq.X,
'Y': lambda params: cirq.Y,
'Z': lambda params: cirq.Z,
'H': lambda params: cirq.H,
'RX': lambda params: cirq.rx(*params),
'RY': lambda params: cirq.ry(*params),
'RZ': lambda params: cirq.rz(*params),
'CZ': lambda params: cirq.CZ,
'ZZ': lambda params: cirq.ZZ,
'CX': lambda params: cirq.CNOT,
'SWAP': lambda params: cirq.SWAP,
'ISWAP': lambda params: cirq.ISWAP,
'FSIM': lambda params: cirq.FSimGate(*params),
'CPHASE': lambda params: cirq.CZ**(params[0] / np.pi)
}
# Get circuit
circ = cirq.Circuit()
# If not provided, create trivial map
if not qubits_map:
try:
sorted(circuit.all_qubits())
_standard_sortable = True
except:
_standard_sortable = False
if _standard_sortable:
qubits_map = {q: cirq.LineQubit(q) for q in circuit.all_qubits()}
else:
qubits_map = {
q: cirq.LineQubit(x) for x, q in enumerate(circuit.all_qubits())
}
# Apply gates
for gate in tqdm(circuit, disable=not verbose):
# Check if qubits are missing
if not gate.provides('qubits') or gate.qubits is None:
raise ValueError(
f"Gate(name='{gate.name}') requires {gate.n_qubits} qubits.")
# Check if params are missing
if gate.provides('params') and gate.params is None:
raise ValueError(
f"Gate(name='{gate.name}') requires {gate.n_params} parameters."
)
# Get mapped qubits
qubits = [qubits_map[q] for q in gate.qubits]
# Get params
params = gate.params if gate.provides('params') else None
if gate.name in {
'MATRIX', 'U3', 'R_PI_2'
} or (gate.provides('is_conjugated') and
gate.is_conjugated()) or (gate.provides('is_transposed') and
gate.is_transposed()):
cirq_gate = cirq.MatrixGate(gate.matrix())
elif gate.name[:5] == 'SQRT_':
cirq_gate = _to_cirq_naming[gate.name[5:]](params)**(0.5 *
gate.power)
elif gate.name in _to_cirq_naming:
cirq_gate = _to_cirq_naming[gate.name](params)**gate.power
else:
raise ValueError(f"{gate} not yet supported.")
# Append
circ.append(cirq_gate.on(*qubits))
return circFunctions
def to_cirq(circuit: Circuit, qubits_map: dict[any, any] = None, verbose: bool = False) ‑> cirq.Circuit-
Convert
Circuittocirq.Circuit.Parameters
circuit:CircuitCircuitto convert tocirq.Circuit.qubits_map:dict[any, any], optional- How to map qubits in
Circuittocirq.Circuit. if not provided,cirq.LineQubits are used and automatically mapped toCircuit's qubits. verbose:bool, optional- Verbose output.
Returns
cirq.Circuitcirq.Circuitobtained fromCircuit.
Example
>>> from hybridq.extras.cirq import to_cirq >>> c = Circuit(Gate('H', qubits=[q]) for q in range(3)) >>> c.append(Gate('CX', qubits=[0, 1])) >>> c.append(Gate('CX', qubits=[2, 0])) >>> c.append(Gate('CX', qubits=[1, 2])) >>> to_cirq(c) 0: ───H───@───X─────── │ │ 1: ───H───X───┼───@─── │ │ 2: ───H───────@───X───Expand source code
def to_cirq(circuit: Circuit, qubits_map: dict[any, any] = None, verbose: bool = False) -> cirq.Circuit: """ Convert `Circuit` to `cirq.Circuit`. Parameters ---------- circuit: Circuit `Circuit` to convert to `cirq.Circuit`. qubits_map: dict[any, any], optional How to map qubits in `Circuit` to `cirq.Circuit`. if not provided, `cirq.LineQubit`s are used and automatically mapped to `Circuit`'s qubits. verbose: bool, optional Verbose output. Returns ------- cirq.Circuit `cirq.Circuit` obtained from `Circuit`. Example ------- >>> from hybridq.extras.cirq import to_cirq >>> c = Circuit(Gate('H', qubits=[q]) for q in range(3)) >>> c.append(Gate('CX', qubits=[0, 1])) >>> c.append(Gate('CX', qubits=[2, 0])) >>> c.append(Gate('CX', qubits=[1, 2])) >>> to_cirq(c) 0: ───H───@───X─────── │ │ 1: ───H───X───┼───@─── │ │ 2: ───H───────@───X─── """ _to_cirq_naming = { 'I': lambda params: cirq.I, 'P': lambda params: cirq.S, 'T': lambda params: cirq.T, 'X': lambda params: cirq.X, 'Y': lambda params: cirq.Y, 'Z': lambda params: cirq.Z, 'H': lambda params: cirq.H, 'RX': lambda params: cirq.rx(*params), 'RY': lambda params: cirq.ry(*params), 'RZ': lambda params: cirq.rz(*params), 'CZ': lambda params: cirq.CZ, 'ZZ': lambda params: cirq.ZZ, 'CX': lambda params: cirq.CNOT, 'SWAP': lambda params: cirq.SWAP, 'ISWAP': lambda params: cirq.ISWAP, 'FSIM': lambda params: cirq.FSimGate(*params), 'CPHASE': lambda params: cirq.CZ**(params[0] / np.pi) } # Get circuit circ = cirq.Circuit() # If not provided, create trivial map if not qubits_map: try: sorted(circuit.all_qubits()) _standard_sortable = True except: _standard_sortable = False if _standard_sortable: qubits_map = {q: cirq.LineQubit(q) for q in circuit.all_qubits()} else: qubits_map = { q: cirq.LineQubit(x) for x, q in enumerate(circuit.all_qubits()) } # Apply gates for gate in tqdm(circuit, disable=not verbose): # Check if qubits are missing if not gate.provides('qubits') or gate.qubits is None: raise ValueError( f"Gate(name='{gate.name}') requires {gate.n_qubits} qubits.") # Check if params are missing if gate.provides('params') and gate.params is None: raise ValueError( f"Gate(name='{gate.name}') requires {gate.n_params} parameters." ) # Get mapped qubits qubits = [qubits_map[q] for q in gate.qubits] # Get params params = gate.params if gate.provides('params') else None if gate.name in { 'MATRIX', 'U3', 'R_PI_2' } or (gate.provides('is_conjugated') and gate.is_conjugated()) or (gate.provides('is_transposed') and gate.is_transposed()): cirq_gate = cirq.MatrixGate(gate.matrix()) elif gate.name[:5] == 'SQRT_': cirq_gate = _to_cirq_naming[gate.name[5:]](params)**(0.5 * gate.power) elif gate.name in _to_cirq_naming: cirq_gate = _to_cirq_naming[gate.name](params)**gate.power else: raise ValueError(f"{gate} not yet supported.") # Append circ.append(cirq_gate.on(*qubits)) return circ