.. Submodule
    Dedicated documentation for entanglement and bipartition helpers.

============
Entanglement
============

This section collects the lower-level helper modules used for subsystem /
environment partitions, cached ``psi_matrix`` construction, exact Schmidt
spectra, and density-matrix post-processing.

.. toctree::
    :maxdepth: 2
    :caption: Contents:

    partitions
    psi_matrix
    schmidt
    density_matrix