Numerical Diagonalization of Quantum Spin Hamiltonians
- 1 January 1986
- journal article
- Published by Oxford University Press (OUP) in Progress of Theoretical Physics Supplement
- Vol. 87, 247-255
- https://doi.org/10.1143/ptps.87.247
Abstract
We explain numerical methods to calculate low-lying eigenstates of the finite-size spin-1/2 anisotropic Heisenberg model. Sparse matrix techniques and a bit representation of spin configurations are shown to be quite useful in writing a program independent of specific lattice structure. A few examples of application are presented to demonstrate the effectiveness of our method.Keywords
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