[v1.0.6] - 2025-04-29

Release Notes

Minor changes and fixes.

Changelog

Backwards incompatible changes

• nothing yet

Added

• Add config options to control what is conserved for the XXZChain and PXPChain.

• Add get_scipy_sparse_Hamiltonian() and get_numpy_Hamiltonian() for exporting a Hamiltonian to a full matrix representation (sparse or dense matrix respectively).

• Improve implementation of optimized 4-th order Suzuki-Trotter decomposition for the TEBDEngine. When evolving by multiple steps without stopping, we can merge the last operator of one step with the first operator of the next step, as we already do for the other orders 2 and 4.

Changed

• ExponentiallyDecayingCouplingTerms now accepts a 1D array of size L for the decay rate lambda_. (:issue: 176).

Fixed

• Fix from_full(), for PurificationMPS, which is implemented in the parent class MPS. It did not consider that a purification has more legs.

• Similar for apply_local_op()