Slave rotor theory of antiferromagnetic Hubbard model
| dc.creator | Kim, Ki-Seok | |
| dc.creator | Han, Jung Hoon | |
| dc.date | 2006-05-10 | |
| dc.date.accessioned | 2026-07-07T07:08:52Z | |
| dc.date.available | 2026-07-07T07:08:52Z | |
| dc.description | The slave-rotor mean-field theory of Florens and Georges is generalized to the antiferromagnetic phase of the Hubbard model. An effective action consisting of a spin rotor and a fermion is derived and the corresponding saddle-point action is analyzed. Zero-temperature phase diagram of the antiferromagnetic Hubbard model is presented. While the magnetic phase persists for all values of the Hubbard interaction U, the single-particle spectral function exhibits a crossover into an incoherent phase when the magnetic moment m (and the corresponding U values) lies within a certain window m_c < m < 1-m_c, indicating a possible deviation from the Hartree-Fock theory. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0605266 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0605266 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/110866 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Slave rotor theory of antiferromagnetic Hubbard model | |
| dc.type | text |