Basis Optimization Renormalization Group for Quantum Hamiltonian

Details Basis Optimization Renormalization Group for Quantum Hamiltonian Basis Optimization Renormalization Group for Quantum Hamiltonian

2001-04-02

arxiv.org/abs/hep-th/0104013v2

Nucl.Phys.Proc.Suppl. 108 (2002) 267-269

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1016/S0920-5632(02)01342-7

We find an algorithm of numerical renormalization group for spin chain
models. The essence of this algorithm is orthogonal transformation of basis
states, which is useful for reducing the number of relevant basis states to
create effective Hamiltonian. We define two types of rotations and combine them
to create appropriate orthogonal transformation.

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