Finitetemperature phase transitions in the SU (N ) Hubbard model
Abstract
We investigate the SU (N ) Hubbard model for the multicomponent fermionic optical lattice system, combining dynamical meanfield theory with the continuoustime quantum Monte Carlo method. We obtain the finitetemperature phase diagrams with N ≤6 and find that lowtemperature properties depend on the parity of the components. The magnetically ordered state competes with the correlated metallic state in the system with an even number of components (N ≥4 ) , yielding the firstorder phase transition. It is also clarified that in the oddcomponent system, the ordered state is realized at relatively lower temperatures and the critical temperature is constant in the strong coupling limit.
 Publication:

Physical Review B
 Pub Date:
 July 2016
 DOI:
 10.1103/PhysRevB.94.041110
 arXiv:
 arXiv:1603.02647
 Bibcode:
 2016PhRvB..94d1110Y
 Keywords:

 Condensed Matter  Quantum Gases;
 Condensed Matter  Strongly Correlated Electrons
 EPrint:
 5pages, 6figures