[0.7.2] - 2020-10-09

Release Notes

We’ve added a list of all papers using (and citing) TeNPy, see Papers using TeNPy. Feel free to include your own works!

And a slight simplicifation, which might affect your code: using the MultiCouplingModel is no longer necessary, just use the tenpy.models.model.CouplingModel directly.

Changelog

Backwards incompatible changes

• Deprecated the tenpy.models.model.MultiCouplingModel. The functionality is fully merged into the CouplingModel, no need to subclass the MultiCouplingModel anymore.

• The Kagome lattice did not include all next_next_nearest_neighbors. (It had only the ones across the hexagon, missing those maiking up a bow-tie.)

• Combined arguments onsite_terms and coupling_terms of tenpy.networks.mpo.MPOGraph.from_terms() into a single argument terms.

Added

• Allow to include jupyter notebooks into the documentation; collect example notebooks in [TeNPyNotebooks].

• term_correlation_function_right() and term_correlation_function_left() for correlation functions with more than one operator on each end.

• tenpy.networks.terms.ExponentiallyDecayingTerms for constructing MPOs with exponential decay, and tenpy.networks.model.CouplingModel.add_exponentially_decaying_coupling() for using it. This closes issue #78.

Fixed

• The IrregularLattice used the 'default' order of the regular lattice instead of whatever the order of the regular lattice was.

• charge_variance() did not work for more than 1 charge.