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Quantum magnetic properties of the SU(2N) Hubbard model in the square lattice: A quantum Monte Carlo study
- Source :
- Physical Review B-Condensed Matter and Materials Physics, arXiv
- Publication Year :
- 2013
-
Abstract
- We employ the determinant projector quantum Monte-Carlo method to investigate the ground state magnetic properties in the Mott insulating states of the half-filled SU(4) and SU(6) Fermi-Hubbard model in the 2D square lattice, which is free of the sign problem. The long-range antiferromagnetic Neel order is found for the SU(4) case with a small residual Neel moment. Quantum fluctuations are even stronger in the SU(6) case. Numeric results are consistent with either a vanishing or even weaker Neel ordering than that of SU(4).<br />sumbitted to PRB
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical Review B - Condensed Matter and Materials Physics
- Accession number :
- edsair.doi.dedup.....5ccd386b989dd0277498fc2bd46069c3