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oai:docta.ucm.es:20.500.14352/441242023-08-26T02:46:47Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Palazuelos Cabezón, Carlos author 2012-11 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. 0031-9007 10.1103/PhysRevLett.109.190401 https://hdl.handle.net/20.500.14352/44124 http://link.aps.org/doi/10.1103/PhysRevLett.109.190401 http://arxiv.org/abs/1205.3118 Superactivation of Quantum Nonlocality