Source code for braket.ir.annealing.problem_v1

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from enum import Enum
from typing import Dict, Union

from pydantic import Field, conint

from braket.schema_common import BraketSchemaBase, BraketSchemaHeader


[docs]class ProblemType(str, Enum): """The type of annealing problem. QUBO: Quadratic Unconstrained Binary Optimization, with values 1 and 0 ISING: Ising model, with values +/-1 """ QUBO = "QUBO" ISING = "ISING"
[docs]class Problem(BraketSchemaBase): """Specifies a quantum annealing problem. Attributes: braketSchemaHeader (BraketSchemaHeader): Schema header. Users do not need to set this value. Only default is allowed. type (Union[ProblemType, str]): The type of problem; can be either "QUBO" or "ISING" linear (Dict[int, float]): Linear terms of the model. quadratic (Dict[str, float]): Quadratic terms of the model, keyed on comma-separated variables as strings Examples: >>> Problem(type=ProblemType.QUBO, linear={0: 0.3, 4: -0.3}, quadratic={"0,5": 0.667}) """ _PROBLEM_HEADER = BraketSchemaHeader(name="braket.ir.annealing.problem", version="1") braketSchemaHeader: BraketSchemaHeader = Field(default=_PROBLEM_HEADER, const=_PROBLEM_HEADER) type: Union[ProblemType, str] linear: Dict[conint(ge=0), float] quadratic: Dict[str, float]