Computer renormalization-group technique applied to the Hubbard model
- 15 September 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 18 (6) , 2426-2430
- https://doi.org/10.1103/physrevb.18.2426
Abstract
We present a computer renormalization-group technique of value in solving Hamiltonians which may be expressed in site-interactive forms of short range. The technique delivers the eigenfunctions and eigenvalues in a finite energy range about the highest occupied energy level for a finite chain or cluster. With the method, the Hubbard Hamiltonian is solved up to 16 sites, and the thermodynamical quantities and density autocorrelation function are computed.
Keywords
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