Experimental Realization of an Approximate Partial Transpose for Photonic Two-Qubit Systems

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We report the first experimental realization of an approximate partial transpose for photonic two-qubit systems. The proposed scheme is based on the local operation on single copies of quantum states and classical communication, and therefore can be easily applied for other quantum information tasks within current technologies. Direct detection of entanglement, i.e., without performing quantum state tomography, using the partial transpose operation, is also demonstrated.
Publisher
AMER PHYSICAL SOC
Issue Date
2011-10
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW LETTERS, v.107, no.16

ISSN
0031-9007
DOI
10.1103/PhysRevLett.107.160401
URI
http://hdl.handle.net/10203/244372
Appears in Collection
PH-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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