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feature: support for julia branched MCM local simulator #48

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aebe4fa
support for julia branched MCM local simulator
Jul 14, 2025
8705c60
Merge branch 'main' into main
rmshaffer Sep 9, 2025
867de6d
Merge branch 'main' into main
rmshaffer Sep 9, 2025
7806688
Merge branch 'main' into main
rmshaffer Sep 10, 2025
903385d
Merge branch 'main' into main
rmshaffer Jan 29, 2026
d1116bf
Merge branch 'main' into main
rmshaffer Mar 3, 2026
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1 change: 1 addition & 0 deletions pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ dynamic = ["version", "dependencies", "optional-dependencies"]
[project.entry-points."braket.simulators"]
braket_sv_v2 = "braket.simulator_v2.state_vector_simulator_v2:StateVectorSimulatorV2"
braket_dm_v2 = "braket.simulator_v2.density_matrix_simulator_v2:DensityMatrixSimulatorV2"
braket_sv_branched = "braket.simulator_v2.state_vector_simulator_branched:StateVectorSimulatorBranched"

[tool.setuptools]
include-package-data=false
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3 changes: 3 additions & 0 deletions src/braket/simulator_v2/__init__.py
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Expand Up @@ -4,5 +4,8 @@
from braket.simulator_v2.state_vector_simulator_v2 import ( # noqa: F401
StateVectorSimulatorV2,
)
from braket.simulator_v2.state_vector_simulator_branched import (
StateVectorSimulatorBranched
)

from ._version import __version__ # noqa: F401
182 changes: 182 additions & 0 deletions src/braket/simulator_v2/state_vector_simulator_branched.py
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@@ -0,0 +1,182 @@
import sys

from braket.device_schema.simulators import (
GateModelSimulatorDeviceCapabilities,
GateModelSimulatorDeviceParameters,
)

from braket.simulator_v2.base_simulator_v2 import BaseLocalSimulatorV2


class StateVectorSimulatorBranched(BaseLocalSimulatorV2):
"""A state vector simulator meant to run directly on the user's machine using a Julia backend.

This class wraps a BraketSimulator object so that it can be run and returns
results using constructs from the SDK rather than Braket IR.
"""

DEVICE_ID = "braket_sv_branched"

def __init__(self):
super().__init__(self.DEVICE_ID)

@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 = 32
return GateModelSimulatorDeviceCapabilities.parse_obj(
{
"service": {
"executionWindows": [
{
"executionDay": "Everyday",
"windowStartHour": "00:00",
"windowEndHour": "23:59:59",
}
],
"shotsRange": [0, max_shots],
},
"action": {
"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": True,
"supportsUnassignedMeasurements": True,
"disabledQubitRewiringSupported": False,
},
},
"paradigm": {"qubitCount": qubit_count},
"deviceParameters": GateModelSimulatorDeviceParameters.schema(),
}
)