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Computational Complexity Measures of Multipartite Quantum Entanglement | | Tomoyuki Yamakami
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13 Aug 2003 | | Journal: | Proc. 14th ISAAC. Springer’s LNCS, Vol.2906, pp.117-128, 2003 | | Subject: | Quantum Physics; Computational Complexity | quant-ph cs.CC | | Abstract: | We shed new light on entanglement measures in multipartite quantum systems by taking a computational-complexity approach toward quantifying quantum entanglement with two familiar notions--approximability and distinguishability. Built upon the formal treatment of partial separability, we measure the complexity of an entangled quantum state by determining (i) how hard to approximate it from a fixed classical state and (ii) how hard to distinguish it from all partially separable states. We further consider the Kolmogorovian-style descriptive complexity of approximation and distinction of partial entanglement. | | Source: | arXiv, quant-ph/0308072 | | Services: | Forum | Review | PDF | Favorites | |
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