dorsal/arxiv
View SchemaLong-distance entanglement in spin systems
| Authors | L. Campos Venuti, C. Degli Esposti Boschi, M. Roncaglia |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0604215 |
| URL | https://arxiv.org/abs/quant-ph/0604215 |
| DOI | 10.1103/PhysRevLett.96.247206 |
| Journal | Phys. Rev. Lett. 96, 247206 (2006) |
Abstract
Most quantum system with short-ranged interactions show a fast decay of entanglement with the distance. In this Letter, we focus on the peculiarity of some systems to distribute entanglement between distant parties. Even in realistic models, like the spin-1 Heisenberg chain, sizable entanglement is present between arbitrarily distant particles. We show that long distance entanglement appears for values of the microscopic parameters which do not coincide with known quantum critical points, hence signaling a transition detected only by genuine quantum correlations.
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"abstract": "Most quantum system with short-ranged interactions show a fast decay of\nentanglement with the distance. In this Letter, we focus on the peculiarity of\nsome systems to distribute entanglement between distant parties. Even in\nrealistic models, like the spin-1 Heisenberg chain, sizable entanglement is\npresent between arbitrarily distant particles. We show that long distance\nentanglement appears for values of the microscopic parameters which do not\ncoincide with known quantum critical points, hence signaling a transition\ndetected only by genuine quantum correlations.",
"arxiv_id": "quant-ph/0604215",
"authors": [
"L. Campos Venuti",
"C. Degli Esposti Boschi",
"M. Roncaglia"
],
"categories": [
"quant-ph",
"cond-mat.str-el"
],
"doi": "10.1103/PhysRevLett.96.247206",
"journal_ref": "Phys. Rev. Lett. 96, 247206 (2006)",
"title": "Long-distance entanglement in spin systems",
"url": "https://arxiv.org/abs/quant-ph/0604215"
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