Quantum Information Science Library (bqskit.qis)

The bqskit.qis package contains class definitions for common objects found in quantum information science.

The most widely used will be the UnitaryMatrix object which represents a pure quantum operation in matrix form.

Abstract Base Classes

Unitary	A unitary-valued function.
DifferentiableUnitary	A differentiable unitary-valued function.
LocallyOptimizableUnitary	A locally optimizable unitary-valued function.
StateVectorMap	A map from quantum pure states to quantum pure states.

Core Classes

UnitaryMatrix(input[, radixes, check_arguments])	A concrete representation of a unitary matrix.
UnitaryBuilder(num_qudits[, radixes])	An object for fast unitary accumulation using tensor networks.
StateVector(input[, radixes, check_arguments])	A vector representing a pure quantum state.
StateSystem(system)	A system of input and output states.
PauliMatrices(num_qudits)	Pauli group of matrices.
PermutationMatrix(input[, radixes, ...])	A binary, unitary matrix with a single 1 in each row and column.
CouplingGraph(graph[, num_qudits, ...])	A graph representing connections in a qudit topology.

Type Aliases

UnitaryLike	alias of UnitaryMatrix | complex128 | complex64 | int64 | int32 | float64 | float32 | Sequence[Sequence[int | float | complex]]
StateLike	alias of StateVector | complex128 | Sequence[int | float | complex]
StateSystemLike	alias of StateSystem | Dict[Any, Any]
RealVector	alias of Sequence[float] | float64 | float32
CouplingGraphLike	alias of Iterable[Tuple[int, int]] | CouplingGraph