proj_purification()

Lattice syten::T3N::ProjectedPurification::proj_purification ( Lattice const &  lat, std::vector< Index > const &  purify_types, bool const  insert_branch, std::vector< std::string > const &  ca_ops = {}  )

inline

Takes any lattice and doubles the number of sites.

Thereby introduces a new site-type for each existing one, namely the auxillary bath sites. These bath sites account for the change in quantum numbers which otherwise would make it impossible to use symmetry protected tensors.

Parameters

lat	Lattice to use.
purify_types	Which site types should be purified.
ca_ops	Elements of these SSOs are replaced by one.
sigmas	If you want a projector specify the highest sector.