DiagonalizeDisentangler¶

full name: tenpy.algorithms.purification_tebd.DiagonalizeDisentangler
parent module: tenpy.algorithms.purification_tebd
type: class

class tenpy.algorithms.purification_tebd.DiagonalizeDisentangler(parent)[source]¶

Bases: tenpy.algorithms.purification_tebd.Disentangler

Disentangle by diagonalizing the two-site density matrix in the auxiliar space.

See arXiv:1704.01974. Problem: Sorting by eigenvalues breaks the charge conservation! Instead we just sort within the charge blocks. For non-trivial charges, this might increase the entropy!

Arguments and return values are the same as for Disentangler.

Methods

__call__(self, theta)

Find and apply a unitary to disentangle theta.