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(*args, **kwargs)	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 Union[UnitaryMatrix, ndarray, Sequence[Sequence[Union[int, float, complex]]]]
StateLike	alias of Union[StateVector, ndarray, Sequence[Union[int, float, complex]]]
StateSystemLike	alias of Union[StateSystem, Dict[Any, Any]]
RealVector	alias of Union[Sequence[float], ndarray]
CouplingGraphLike	alias of Union[Iterable[Tuple[int, int]], CouplingGraph]