dorsal/arxiv
View SchemaDetection and characterization of multipartite entanglement in optical lattices
| Authors | R. N. Palmer, C. Moura Alves, D. Jaksch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506059 |
| URL | https://arxiv.org/abs/quant-ph/0506059 |
| DOI | 10.1103/PhysRevA.72.042335 |
Abstract
We investigate the detection and characterization of entanglement based on the quantum network introduced in [Phys. Rev. Lett. 93, 110501 (2004)] for different experimental scenarios. We first give a detailed discussion of the ideal scheme where no errors are present and full spatial resolution is available. Then we analyze the implementation of the network in an optical lattice. We find that even without any spatial resolution entanglement can be detected and characterized in various kinds of states including cluster states and macroscopic superposition states. We also study the effects of detection errors and imperfect dynamics on the detection network. For our scheme to be practical these errors have to be on the order of one over the number of investigated lattice sites. Finally, we consider the case of limited spatial resolution and conclude that significant improvement in entanglement detection and characterization compared to having no spatial resolution is only possible if single lattice sites can be resolved.
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"abstract": "We investigate the detection and characterization of entanglement based on\nthe quantum network introduced in [Phys. Rev. Lett. 93, 110501 (2004)] for\ndifferent experimental scenarios. We first give a detailed discussion of the\nideal scheme where no errors are present and full spatial resolution is\navailable. Then we analyze the implementation of the network in an optical\nlattice. We find that even without any spatial resolution entanglement can be\ndetected and characterized in various kinds of states including cluster states\nand macroscopic superposition states. We also study the effects of detection\nerrors and imperfect dynamics on the detection network. For our scheme to be\npractical these errors have to be on the order of one over the number of\ninvestigated lattice sites. Finally, we consider the case of limited spatial\nresolution and conclude that significant improvement in entanglement detection\nand characterization compared to having no spatial resolution is only possible\nif single lattice sites can be resolved.",
"arxiv_id": "quant-ph/0506059",
"authors": [
"R. N. Palmer",
"C. Moura Alves",
"D. Jaksch"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.042335",
"title": "Detection and characterization of multipartite entanglement in optical lattices",
"url": "https://arxiv.org/abs/quant-ph/0506059"
},
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