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Multipartite maximally entangled states in symmetric scenarios

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González Guillén, Carlos E. (2012) Multipartite maximally entangled states in symmetric scenarios. Physical Review A, 86 (2). ISSN 1050-2947

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Official URL: http://journals.aps.org/pra/abstract/10.1103/PhysRevA.86.022304



Abstract

We consider the class of (N + 1)-partite states suitable for protocols where there is a powerful party, the authority, and the other N parties play the same role, namely, the state of their system lies in the symmetric Hilbert space. We show that, within this scenario, there is a “maximally entangled state” that can be transform by a local operations and classical communication protocol into any other state. In addition, we show how to use the protocol efficiently, including the construction of the state, and discuss security issues for possible applications to cryptographic protocols. As an immediate consequence we recover a sequential protocol that implements the 1-to-N symmetric cloning.


Item Type:Article
Subjects:Sciences > Physics > Mathematical physics
Sciences > Physics > Quantum theory
ID Code:27966
Deposited On:13 Feb 2015 12:53
Last Modified:13 Feb 2015 12:53

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