Browsing by author "Degenhard, Andreas"
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Nonperturbative real-space renormalization group scheme for the spin-1/2 XXX Heisenberg model
Degenhard, A (AMER PHYSICAL SOC, 2001-11-01)In this paper we apply an analytical real-space renormalization group formulation which is based on numerical concepts of the density-matrix renormalization group, Within a rigorous mathematical framework we construct ...