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Phase transitions and entanglement properties in spin-1 Heisenberg clusters with single ion anisotropy
| Content Provider | Semantic Scholar |
|---|---|
| Author | Abgaryan, V. S. Ananikian, Nerses S. Ananikyan, L. N. Kocharian, Naira |
| Copyright Year | 2018 |
| Abstract | The incipient quantum phase transitions of relevance to non-zero fluctuations and entanglement are studied in Heisenberg clusters by exploiting the negativity as a measure in bipartite and frustrated spin-1 anisotropic Heisenberg clusters with bilinear-biquadratic exchange, single-ion anisotropy and magnetic field. Using exact diagonalization technique it is shown that quantum critical points signaled by qualitative changes in behavior of magnetization and particle number, is ultimately related to microscopic entanglement and collective excitations. The plateaus and peaks in spin and particle susceptibilities, define the conditions for a high/low density quantum entanglement and various ordered phases with different spin (particle) concentrations. PACS numbers: 75.10.Jm, 75.10.Dg, 03.67.-a, 64.70.-p, 37.10.Jk Phase transitions and entanglement properties in spin-1 Heisenberg clusters with single ion anisotropy2 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://export.arxiv.org/pdf/1106.5378 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |