Z2 slave-spin theory of a strongly correlated Chern insulator
| Autor: | Sebastian D. Huber, Diana Prychynenko |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Condensed matter physics Insulator (electricity) Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Electronic Optical and Magnetic Materials Topological insulator Lattice (order) 0103 physical sciences Modulation spectroscopy Condensed Matter::Strongly Correlated Electrons Electrical and Electronic Engineering Metal–insulator transition 010306 general physics Phase diagram |
| Zdroj: | Physica B: Condensed Matter. 481:53-58 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/j.physb.2015.10.027 |
| Popis: | We calculate the phase diagram of the topological honeycomb model in the presence of strong interactions. We concentrate on half filling and employ a Z 2 slave-spin method to find a band insulator with staggered density, a spin-density-wave and a Mott insulating phase. Both the band insulator and the spin-density wave come in various topological varieties. Finally, we calculate the response function relevant for lattice modulation spectroscopy with cold atomic gases in optical lattices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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