Bose-Einstein condensation of particle-hole pairs in ultracold fermionic atoms trapped within optical lattices |
| |
Authors: | Lee Chaohong |
| |
Institution: | Max Planck Institute for the Physics of Complex Systems, N?thnitzer Strasse 38, D-01187 Dresden, Germany. chlee@mpipks-dresden.mpg.de |
| |
Abstract: | We investigate the Bose-Einstein condensation (BEC, superfluidity) of particle-hole pairs in ultracold fermionic atoms with repulsive interactions and arbitrary polarization, which are trapped within optical lattices. In the strongly repulsive limit, the dynamics of particle-hole pairs can be described by a hard-core Bose-Hubbard model. The insulator-superfluid and charge-density-wave- (CDW) superfluid phase transitions can be induced by decreasing and increasing the potential depths with controlling the trapping laser intensity, respectively. The parameter and polarization dependence of the critical temperatures for the ordered states (BEC and/or CDW) are discussed simultaneously. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|