Comment on arXiv:0811.1575 entitled "Quantum phase transitions in the Hubbard model on triangular lattice" by T. Yoshioka, A. Koga and N. Kawakami

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dc.creatorWatanabe, Shinji
dc.creatorMizusaki, Takahiro
dc.creatorImada, Masatoshi
dc.date2008-11-22
dc.date.accessioned2026-07-07T10:20:32Z
dc.date.available2026-07-07T10:20:32Z
dc.descriptionWe show that the phase boundary between the paramagnetic metal and the nonmagnetic Mott insulator for the Hubbard model on a triangular lattice obtained by Yoshioka et al. in arXiv:0811.1575 does not correctly represent that of the thermodynamic limit but is an artifact of the 6 by 6 lattice they rely on. After the system size extrapolation, the phase boundary is located at U/t=5.2 as proposed by Morita et al., J. Phys. Soc. Jpn. 71 (2008) 2109 and in contrast to Yoshioka et al. Here, U is the onsite Coulomb repulsion and t is the nearest-neighbor transfer.
dc.description3 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0811.3718
dc.identifierhttp://arxiv.org/abs/0811.3718
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174880
dc.subjectStrongly Correlated Electrons
dc.titleComment on arXiv:0811.1575 entitled "Quantum phase transitions in the Hubbard model on triangular lattice" by T. Yoshioka, A. Koga and N. Kawakami
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