The SymPsi Python library is an experimental fork and extension of the quantum module in SymPy. It provides support for bosonic and fermionic operators, Pauli Sigma operators, unitary transformations, normal ordering of operators and other techniques that are useful in quantum optics and related fields.

Installation

SymPsi requires a recent version of SymPy. To install SymPy (see also the SymPy installation instructions), run:

$ pip install sympy

The SymPsi package can be installed using:

$ pip install git+https://github.com/sympsi/sympsi.git

and to upgrade an existing installation, just add the --upgrade flag:

$ pip install --upgrade git+https://github.com/sympsi/sympsi.git