quimb.tensor.tn2dinf
====================

.. py:module:: quimb.tensor.tn2dinf

.. autoapi-nested-parse::

   Infinite, translation-invariant 2D tensor networks defined by a unit cell,
   e.g. infinite PEPS and their imaginary-time simple update.

   Some notable definitions and conventions of terms used in this subpackage:

   - "site": a concrete (cell, site_type) pair defining a location site in the
     infinite lattice.
   - "cell": (dx, dy) integer unit-cell translation (not a position).
   - "site_type": label of a site within the unit cell, all sites with the same
     site_type share data.
   - "bond_type": a bond's translation class, canonicalized with the first
     endpoint anchored at cell (0, 0) and the pair sorted.
   - "bond index": the concrete index name on one specific translated bond.
   - "canonical": the (0, 0) anchored representative keying a translation class.
   - "fragment": the finite materialized TN patch standing in for the infinite
     network, that operations act on and are synced from.
   - "shared_tensors" / "shared_indices": the set of tensors or indices in the
     fragment sharing the same site_type or bond_type, respectively.
   - "position": the cartesian coordinate of a site, defined by the unit cell's
     basis and the site_type's fractional offset within the unit cell.



Submodules
----------

.. toctree::
   :maxdepth: 1

   /autoapi/quimb/tensor/tn2dinf/core/index
   /autoapi/quimb/tensor/tn2dinf/geometry/index
   /autoapi/quimb/tensor/tn2dinf/tebd/index