Ultracold fermions and the SU(N) Hubbard model

Honerkamp, C.; Hofstetter, W.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Ultracold fermions and the SU(N) Hubbard model

MPS-Authors

/persons/resource/persons280064

Honerkamp, C.
Department Quantum Many-Body Theory (Walter Metzner), Max Planck Institute for Solid State Research, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Honerkamp, C., & Hofstetter, W. (2004). Ultracold fermions and the SU(N) Hubbard model. Physical Review Letters, 92(17): 170403.

Cite as: https://hdl.handle.net/21.11116/0000-000E-F74B-8

Abstract

We investigate the fermionic SU(N) Hubbard model on the two-dimensional
square lattice for weak to moderate interactions using renormalization
group and mean-field methods. For the repulsive case U>0 at half
filling and small N the dominant tendency is towards breaking of the
SU(N) symmetry. For N>6 staggered flux order takes over as the dominant
instability, in agreement with the large-N limit. Away from half
filling for N=3 two flavors remain half filled by cannibalizing the
third flavor. For U<0 and odd N a full Fermi surface coexists with a
superconductor. These results may be relevant to future experiments
with cold fermionic atoms in optical lattices.