dorsal/arxiv
View SchemaDistillation of multipartite entanglement by complementary stabilizer measurements
| Authors | Akimasa Miyake, Hans J. Briegel |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506092 |
| URL | https://arxiv.org/abs/quant-ph/0506092 |
| DOI | 10.1103/PhysRevLett.95.220501 |
| Journal | Phys. Rev. Lett. 95, 220501 (2005) |
Abstract
We propose a scheme of multipartite entanglement distillation driven by a complementary pair of stabilizer measurements, to distill directly a wider range of states beyond the stabilizer code states (such as the Greenberger-Horne-Zeilinger states). We make our idea explicit by constructing a recurrence protocol for the 3-qubit W state. Noisy W states resulting from typical decoherence can be directly purified in a few steps, if their initial fidelity is larger than a threshold. For general input mixed states, we observe distillations to hierarchical fixed points, i.e., not only to the W state but also to the 2-qubit Bell pair, depending on their initial entanglement.
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"abstract": "We propose a scheme of multipartite entanglement distillation driven by a\ncomplementary pair of stabilizer measurements, to distill directly a wider\nrange of states beyond the stabilizer code states (such as the\nGreenberger-Horne-Zeilinger states). We make our idea explicit by constructing\na recurrence protocol for the 3-qubit W state. Noisy W states resulting from\ntypical decoherence can be directly purified in a few steps, if their initial\nfidelity is larger than a threshold. For general input mixed states, we observe\ndistillations to hierarchical fixed points, i.e., not only to the W state but\nalso to the 2-qubit Bell pair, depending on their initial entanglement.",
"arxiv_id": "quant-ph/0506092",
"authors": [
"Akimasa Miyake",
"Hans J. Briegel"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.95.220501",
"journal_ref": "Phys. Rev. Lett. 95, 220501 (2005)",
"title": "Distillation of multipartite entanglement by complementary stabilizer measurements",
"url": "https://arxiv.org/abs/quant-ph/0506092"
},
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