quri_parts.core.operator.representation package

class BinarySymplecticVector(x, z, phase=1)

Bases: NamedTuple

Binary symplectic vector representation for Pauli operators.

Parameters:

  • x (int)

  • z (int)

  • phase (complex)

x: int

Alias for field number 0

z: int

Alias for field number 1

phase: complex

Alias for field number 2

pauli_label_to_bsv(pauli)

Represent a PauliLabel as a binary symplectic vector.

Parameters:

pauli (PauliLabel)

Return type:

BinarySymplecticVector

bsv_bitwise_commute(bsv1, bsv2)

Return if two Pauli strings are bitwise commuting.

Parameters:
Return type:

bool

transition_amp_comp_basis(op_binary_repr, m, n)

Returns the transition amplitude \(\langle m|O|n\rangle\) of the operator \(O\)

Parameters:

  • op_binary_repr (core.operator.representation._TransitionAmplitudeRepresentation)

  • m (int)

  • n (int)

Return type:

complex

transition_amp_representation(operator)

Returns a binary representation _TransitionAmplitudeRepresentation, which is the special representation designed for calculating tansition amplitudes efficiently.

Parameters:

operator (Operator)

Return type:

_TransitionAmplitudeRepresentation

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