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|Title:||Distinguishing Multi-Partite States by Local Measurements|
|Citation:||Lancien, C., Winter, A. (2013-10). Distinguishing Multi-Partite States by Local Measurements. Communications in Mathematical Physics 323 (2) : 555-573. ScholarBank@NUS Repository. https://doi.org/10.1007/s00220-013-1779-x|
|Abstract:||We analyze the distinguishability norm on the states of a multi-partite system, defined by local measurements. Concretely, we show that the norm associated to a tensor product of sufficiently symmetric measurements is essentially equivalent to a multi-partite generalisation of the non-commutative ℓ2-norm (aka Hilbert-Schmidt norm): in comparing the two, the constants of domination depend only on the number of parties but not on the Hilbert spaces dimensions. We discuss implications of this result on the corresponding norms for the class of all measurements implementable by local operations and classical communication (LOCC), and in particular on the leading order optimality of multi-party data hiding schemes. © 2013 Springer-Verlag Berlin Heidelberg.|
|Source Title:||Communications in Mathematical Physics|
|Appears in Collections:||Staff Publications|
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