| Zugriffsnummer | 37460 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Phase diagrams of one, two, and three-dimensional quantum spin systems derived from entanglement properties |
| Autor(in); Institution |
Braiorr-Orrs, Briiissuurs; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig
Weyrauch, Michael; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig
Rakov, Mihailo; Taras Shevchenko National University of Kyiv, Kiew, UKRAINE
|
| Quelle/Jahr | Quantum Information and Computation: 16 (2016), 9/10, 885 - 899 |
| ISSN | 1533-7146 |
| URL | |
| Verlag | Princeton, NJ: Rinton Press |
| Freie Schlagworte | tensor networks ; quantum entanglement ; quantum phase transitions |
| Zusammenfassung | We study the bipartite entanglement per bond to determine characteristic features of the phase diagram of various quantum spin models in different spatial dimensions. The bipartite entanglement is obtained from a tensor network representation of the ground state wave-function. Three spin-1/2 models (Ising, XY, XXZ, all in a transverse field) are investigated. Infinite imaginary-time evolution (iTEBD in 1D, 'simple update' in 2D and 3D) is used to determine the ground states of these models. The phase structure of the models is discussed for all three dimensions. |
