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Quantum Monte Carlo simulations for high-Tc models

DOI to cite this document:
Morgenstern, Ingo ; Von der Linden, Wolfgang ; Frick, M. ; Raedt, H. de
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Date of publication of this fulltext: 23 Aug 2010 11:53


Numerical simulations were carried out using a projector quantum Monte Carlo method pioneered by Sorella et al. Ground state energies are presented for the single band Hubbard model for system sizes 4 x 4 to 8 x 8. The Hubbard model coupled to a two-level system (e.g. bridging oxygen) was also studied. Enhancement of superconducting susceptibilities indicates the possibility of high-Tc superconductivity.

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