Abstract
The Gutzwiller wave function for a strongly correlated model can, if supplemented with a long-range Jastrow factor, provide a proper variational description of Mott insulators, so far unavailable. We demonstrate this concept in the prototypical one-dimensional Hubbard model, where at half-filling we reproduce all known phases, namely, the ordinary Mott undimerized insulator with power-law spin correlations at small , the spin-gapped metal above a critical and small , and the dimerized Mott insulator at large repulsion.
- Received 17 March 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.026406
©2005 American Physical Society