期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.053601
关键词
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资金
- Alexander von Humboldt Foundation
- NSF [NSF-CCF-0524673]
- Staedtler Foundation
- Ikerbasque Foundation
- EU
- UPV-EHU [GIU07/40]
We present a physical setup with which it is possible to produce arbitrary symmetric long-lived multiqubit entangled states in the internal ground levels of photon emitters, including the paradigmatic Greenberger-Horne-Zeilinger and W states. In the case of three emitters, where each tripartite entangled state belongs to one of two well-defined entanglement classes, we prove a one-to-one correspondence between well-defined sets of experimental parameters, i.e., locally tunable polarizer orientations, and multiqubit entanglement classes inside the symmetric subspace.
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