Glöckl O, Lorenz S, Marquardt C, Heersink J, Brownnutt M, Silberhorn C, Pan Q, van Loock P, Korolkova N, Leuchs G (2003)
Publication Language: English
Publication Type: Journal article
Publication year: 2003
Book Volume: 68
Pages Range: 012319
URI: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.68.012319
DOI: 10.1103/PhysRevA.68.012319
We present a protocol for performing entanglement swapping with intense pulsed beams. In a first step, the generation of amplitude correlations between two systems that have never interacted directly is demonstrated. This is verified in direct detection with electronic modulation of the detected photocurrents. The measured correlations are better than expected from a classical reconstruction scheme. In an entanglement swapping process, a four-partite entangled state is generated. We prove experimentally that the amplitudes of the four optical modes are quantum correlated 3 dB below shot noise, which is consistent with the presence of genuine four-party entanglement.
APA:
Glöckl, O., Lorenz, S., Marquardt, C., Heersink, J., Brownnutt, M., Silberhorn, C.,... Leuchs, G. (2003). Experiment towards continuous-variable entanglement swapping: Highly correlated four-partite quantum state. Physical Review A - Atomic, Molecular, and Optical Physics, 68, 012319. https://doi.org/10.1103/PhysRevA.68.012319
MLA:
Glöckl, Oliver, et al. "Experiment towards continuous-variable entanglement swapping: Highly correlated four-partite quantum state." Physical Review A - Atomic, Molecular, and Optical Physics 68 (2003): 012319.
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