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Superactivation of Quantum Nonlocality

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Palazuelos Cabezón, Carlos (2012) Superactivation of Quantum Nonlocality. Physical Review Letters, 109 (19). ISSN 0031-9007

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Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.109.190401


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http://arxiv.org/abs/1205.3118Organisation


Abstract

In this Letter we show that quantum nonlocality can be superactivated. That is, one can obtain violations of Bell inequalities by tensorizing a local state with itself. In the second part of this work we study how large these violations can be. In particular, we show the existence of quantum states with very low Bell violation but such that five copies of them give very large violations. In fact, this gap can be made arbitrarily large by increasing the dimension of the states.


Item Type:Article
Uncontrolled Keywords:Capacity
Subjects:Sciences > Physics > Mathematical physics
ID Code:24431
Deposited On:30 Jan 2014 09:45
Last Modified:07 Feb 2014 11:17

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