تقرير
Entanglement in a spin system with inverse square statistical interaction
| العنوان: | Entanglement in a spin system with inverse square statistical interaction |
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| المؤلفون: | Giuliano, D., Sindona, A., Falcone, G., Plastina, F., Amico, L. |
| المصدر: | New J. Phys. 12 (2010) 025021 |
| سنة النشر: | 2009 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science, Quantum Physics |
| الوصف: | We investigate the entanglement content of the ground state of a system characterized by effective elementary degrees of freedom with fractional statistics. To this end, we explicitly construct the ground state for a chain of $N$ spins with inverse square interaction (the Haldane-Shastry model) in the presence of an external uniform magnetic field. For such a system at zero temperature, we evaluate the entanglement in the ground state both at finite size and in the thermodynamic limit. We relate the behavior of the quantum correlations with the spinon condensation phenomenon occurring at the saturation field. Comment: 11 pages, 7 eps figures. Submitted to New. J. Phys, special issue "Quantum Information and Many-Body Theory"(co-edited by J Eisert and M Plenio) |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/12/2/025022 |
| URL الوصول: | http://arxiv.org/abs/0910.1227 |
| رقم الأكسشن: | edsarx.0910.1227 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/12/2/025022 |
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