Quantum criticality due to incipient phase separation in the two-dimensional Hubbard model

We investigate the two-dimensional Hubbard model with next-nearest-neighbor hopping, t', using the dynamical cluster approximation. We confirm the existence of a first-order phase-separation transition terminating at a second-order critical point at filling nc(t') and temperature Tps(t...

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Bibliographic Details

Published in:	Physical review. B, Condensed matter and materials physics Vol. 81; no. 20
Main Authors:	Khatami, E., Mikelsons, K., Galanakis, D., Macridin, A., Moreno, J., Scalettar, R. T., Jarrell, M.
Format:	Journal Article
Language:	English
Published:	United States American Physical Society (APS) 15-05-2010
Subjects:	Materials Science Physics
Online Access:	Get full text
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