Source code for braket.default_simulator.state_vector_simulator
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#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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.
import sys
from braket.device_schema.simulators import (
GateModelSimulatorDeviceCapabilities,
GateModelSimulatorDeviceParameters,
)
from braket.default_simulator.simulator import BaseLocalSimulator
from braket.default_simulator.state_vector_simulation import StateVectorSimulation
[docs]
class StateVectorSimulator(BaseLocalSimulator):
DEVICE_ID = "braket_sv"
[docs]
def initialize_simulation(self, **kwargs) -> StateVectorSimulation:
"""
Initialize state vector simulation.
Args:
`**kwargs`: qubit_count, shots, batch_size
Returns:
StateVectorSimulation: Initialized simulation.
"""
qubit_count = kwargs.get("qubit_count")
shots = kwargs.get("shots")
batch_size = kwargs.get("batch_size")
return StateVectorSimulation(qubit_count, shots, batch_size)
@property
def properties(self) -> GateModelSimulatorDeviceCapabilities:
"""
Device properties for the StateVectorSimulator.
Returns:
GateModelSimulatorDeviceCapabilities: Device capabilities for this simulator.
"""
observables = ["x", "y", "z", "h", "i", "hermitian"]
max_shots = sys.maxsize
qubit_count = 26
return GateModelSimulatorDeviceCapabilities.parse_obj(
{
"service": {
"executionWindows": [
{
"executionDay": "Everyday",
"windowStartHour": "00:00",
"windowEndHour": "23:59:59",
}
],
"shotsRange": [0, max_shots],
},
"action": {
"braket.ir.jaqcd.program": {
"actionType": "braket.ir.jaqcd.program",
"version": ["1"],
"supportedOperations": [
"ccnot",
"cnot",
"cphaseshift",
"cphaseshift00",
"cphaseshift01",
"cphaseshift10",
"cswap",
"cv",
"cy",
"cz",
"ecr",
"h",
"i",
"iswap",
"pswap",
"phaseshift",
"rx",
"ry",
"rz",
"s",
"si",
"swap",
"t",
"ti",
"unitary",
"v",
"vi",
"x",
"xx",
"xy",
"y",
"yy",
"z",
"zz",
],
"supportedResultTypes": [
{
"name": "Sample",
"observables": observables,
"minShots": 1,
"maxShots": max_shots,
},
{
"name": "Expectation",
"observables": observables,
"minShots": 0,
"maxShots": max_shots,
},
{
"name": "Variance",
"observables": observables,
"minShots": 0,
"maxShots": max_shots,
},
{"name": "Probability", "minShots": 0, "maxShots": max_shots},
{"name": "StateVector", "minShots": 0, "maxShots": 0},
{"name": "DensityMatrix", "minShots": 0, "maxShots": 0},
{"name": "Amplitude", "minShots": 0, "maxShots": 0},
],
},
"braket.ir.openqasm.program": {
"actionType": "braket.ir.openqasm.program",
"version": ["1"],
"supportedOperations": [
# OpenQASM primitives
"U",
"GPhase",
# builtin Braket gates
"ccnot",
"cnot",
"cphaseshift",
"cphaseshift00",
"cphaseshift01",
"cphaseshift10",
"cswap",
"cv",
"cy",
"cz",
"ecr",
"gpi",
"gpi2",
"h",
"i",
"iswap",
"ms",
"pswap",
"phaseshift",
"rx",
"ry",
"rz",
"s",
"si",
"swap",
"t",
"ti",
"unitary",
"v",
"vi",
"x",
"xx",
"xy",
"y",
"yy",
"z",
"zz",
],
"supportedModifiers": [
{
"name": "ctrl",
},
{
"name": "negctrl",
},
{
"name": "pow",
"exponent_types": ["int", "float"],
},
{
"name": "inv",
},
],
"supportedPragmas": [
"braket_unitary_matrix",
"braket_result_type_state_vector",
"braket_result_type_density_matrix",
"braket_result_type_sample",
"braket_result_type_expectation",
"braket_result_type_variance",
"braket_result_type_probability",
"braket_result_type_amplitude",
],
"forbiddenPragmas": [
"braket_noise_amplitude_damping",
"braket_noise_bit_flip",
"braket_noise_depolarizing",
"braket_noise_kraus",
"braket_noise_pauli_channel",
"braket_noise_generalized_amplitude_damping",
"braket_noise_phase_flip",
"braket_noise_phase_damping",
"braket_noise_two_qubit_dephasing",
"braket_noise_two_qubit_depolarizing",
"braket_result_type_adjoint_gradient",
],
"supportedResultTypes": [
{
"name": "Sample",
"observables": observables,
"minShots": 1,
"maxShots": max_shots,
},
{
"name": "Expectation",
"observables": observables,
"minShots": 0,
"maxShots": max_shots,
},
{
"name": "Variance",
"observables": observables,
"minShots": 0,
"maxShots": max_shots,
},
{"name": "Probability", "minShots": 0, "maxShots": max_shots},
{"name": "StateVector", "minShots": 0, "maxShots": 0},
{"name": "DensityMatrix", "minShots": 0, "maxShots": 0},
{"name": "Amplitude", "minShots": 0, "maxShots": 0},
],
"supportPhysicalQubits": False,
"supportsPartialVerbatimBox": False,
"requiresContiguousQubitIndices": True,
"requiresAllQubitsMeasurement": False,
"supportsUnassignedMeasurements": True,
"disabledQubitRewiringSupported": False,
},
},
"paradigm": {"qubitCount": qubit_count},
"deviceParameters": GateModelSimulatorDeviceParameters.schema(),
}
)
DefaultSimulator = StateVectorSimulator