Experimental generation of genuine four-partite entangled states with total three-party correlation for continuous variables
arXiv:0803.1724 · doi:10.1103/PhysRevA.78.013828
Abstract
We experimentally prepare a new type of continuous variable genuine four-partite entangled states, the quantum correlation property of which is different from that of the four-mode GHZ and cluster states, and which has not any qubit counterpart to be proposed at present. In the criterion inequalities for the full inseparability of the genuine four-partite entangled states, the amplitude and phase quadrature correlation variances totally consisting of three-party combination from the four entangled modes are involved. The measured correlation variances among the quadratures of the prepared entangled states satisfy the sufficient requirements for the full inseparability. The type of entangled states has especially potential application in quantum information with continuous quantum variables.
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- Experimental generation of 6 dB continuous variable entanglement from a nondegenerate optical parametric amplifier
- Quantum Teamwork for Unconditional Multiparty Communication with Gaussian States
- Quantum Communication Network Utilizing Quadripartite Entangled States of Optical Field