Physics – Quantum Physics
Scientific paper
2008-04-18
Physics
Quantum Physics
To appear in Physical Review A as a Rapid Comminication
Scientific paper
10.1103/PhysRevA.77.040301
An experimental scheme is proposed that allows direct measurement of the concurrence of a two-qubit cavity system. It is based on the cavity-QED technology using atoms as flying qubits and relies on the identity of the two-particle visibility of the atomic probability with the concurrence of the cavity system. The scheme works for any arbitrary pure initial state of the two-qubit cavity system.
Ji Se-Wan
Lee Hai-Woong
Lee Sang Min
Zubairy Suhail M.
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