| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1591519 | Solid State Communications | 2015 | 6 Pages |
Abstract
The ground-state properties and quantum phase transitions (QPTs) of the one-dimensional extended quantum compass model (EQCM) with Heisenberg perturbation are investigated by the infinite time-evolving block decimation (iTEBD) algorithm. The ground-state properties are found to be affected distinctively by the Heisenberg perturbation and rich phase diagrams are obtained. The first-order QPTs line at J1=0 disappears even with an infinitesimal Heisenberg perturbation and two interesting intermediate phases, such as a disordered phase and a transverse Néel phase, are induced. Both bipartite entanglement and fidelity per site are capable of describing all the second-order QPTs.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Guang-Hua Liu, Long-Juan Kong, Xiao-Yan Deng, Wen-Long You,