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Total spin in the density matrix renormalization group algorithm

McCulloch, I P; Gulacsi, Miklos


A new density matrix renormalization group (DMRG) algorithm is presented which conserves the total spin. This is the first time that standard DMRG is extended to exploit fully the symmetries of the Hamiltonian. The obtained general procedure works for any operator, even operators that do not commute with the Hamiltonian. The new method gives substantial improvements over the standard DMRG.

CollectionsANU Research Publications
Date published: 2001
Type: Journal article
Source: Philosophical Magazine Letters
DOI: 10.1080/09500830110040009


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