paulie.common.pauli_string_parser.pauli_string_parser

paulie.common.pauli_string_parser.pauli_string_parser(pauli_string)

Parse a compact Pauli string representation and return the expanded form.

For example, X_4s10 is expanded to IIIXIIIIII and ZYX_4s10 is expanded to ZYIXIIIIII.

Parameters:

pauli_string (str) – Compact string representation of the Pauli string.

Returns:

Expanded Pauli string with I’s in unspecified positions.

Return type:

str

Raises:

ValueError – If the input string format is invalid.