Exact mapping from a two-band model for Cu oxides to the single-band Hubbard model
- 1 April 1989
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 39 (10) , 7375-7377
- https://doi.org/10.1103/physrevb.39.7375
Abstract
The energy spectrum of a mobile hole in a two-band model for Cu oxides, in the limit where the virtual transitions of two holes on the Cu atoms dominate, is shown by using an exact mapping to be identical to that of an effective Hamiltonian of the strongly correlated single-band Hubbard model. © 1989 The American Physical Society.link_to_subscribed_fulltexKeywords
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