Towards experimental entanglement connection with atomic ensembles in the single excitation regime
- Towards experimental entanglement connection with atomic ensembles in the single excitation regime
- J. Laurat; C.-W. Chou; H. Deng; 최경수; D. Felinto; H. de Riedmatten; H. J. Kimble
- Issue Date
- New journal of physics
- VOL 9, 207-1-207-14
- We present a protocol for performing entanglement connection
between pairs of atomic ensembles in the single excitation regime. Two pairs are
prepared in an asynchronous fashion and then connected via a Bell measurement.
The resulting state of the two remaining ensembles is mapped to photonic modes
and a reduced density matrix is then reconstructed. Our observations confirm
for the first time the creation of coherence between atomic systems that never
interacted, a first step towards entanglement connection, a critical requirement
for quantum networking and long distance quantum communications.
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