Browse Teach Curate

Symbolic Normal Ordering of Bosonic Operators with pyBoLaNO

A SymPy-based Python package that normal-orders any polynomial in bosonic ladder operators under the canonical commutation relations using Blasiak's formulae. It extends to normal-ordering commutators of two such polynomials and to evaluating normal-ordered expectation-value evolution in the Lindblad master equation for open quantum systems, with multipartite support and multiprocessing (Computer Physics Communications 313 (2025) 109622; arXiv:2501.01603).

Rosie Text

pyBoLaNO: A Python symbolic package for normal ordering involving bosonic ladder operators

We present pyBoLaNO, a Python symbolic package based on SymPy to quickly normal-order (Wick-order) any polynomial in bosonic ladder operators. By extension, this package offers the normal ordering of…