Proposal for direct measurement of concurrence via visibility in a cavity QED system
arXiv:0804.2943 · doi:10.1103/PhysRevA.77.040301
Abstract
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.
arXiv commentTo appear in Physical Review A as a Rapid Comminication
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Cited by in corpus (6)
- Quantification of Concurrence via Weak Measurement
- Interference and complementarity for two-photon hybrid entangled states
- Entanglement measure and quantum violation of Bell-type inequality for a family of four-qubit entangled states
- Measurement of arbitrary two-photon entanglement state with the photonic Faraday rotation
- Direct measurement of atomic entanglement via cavity photon statistics
- Auto- and Cross-Correlation-Functions as entanglement quantifiers in semiconductor microcavities