Lower Bound of Multipartite Concurrence Based on Sub-quantum State Decomposition
classification
🪐 quant-ph
keywords
concurrencelowerboundmultipartiteanalyticalapproacharbitrarybounds
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We study the entanglement of tripartite quantum states and provide analytical lower bound of concurrence in terms of the concurrence of sub-states. The lower bound may improve all the existing lower bounds of concurrence. The approach is generalized to arbitrary dimensional multipartite systems.
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