2015
DOI: 10.1103/physreva.91.022101
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Decoherence effects on the nonlocality of symmetric states

Abstract: The observation of the non-local properties of multipartite entangled states is of great importance for quantum information protocols. Such properties, however, are fragile and may not be observed in the presence of decoherence exhibited by practical physical systems. In this work, we investigate the robustness of the non-locality of symmetric states experiencing phase and amplitude damping, using suitable Bell inequalities based on an extended version of Hardy's paradox. We derive thresholds for observing non… Show more

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Cited by 31 publications
(27 citation statements)
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“…II A. We also notice that it is still an open question whether the reduced state of the W state can violate any Bell inequality [20,21], while here we show that it does present steering.…”
Section: E Multipartite Steering Of the W Statesupporting
confidence: 51%
“…II A. We also notice that it is still an open question whether the reduced state of the W state can violate any Bell inequality [20,21], while here we show that it does present steering.…”
Section: E Multipartite Steering Of the W Statesupporting
confidence: 51%
“…In particular, Refs. 14,[26][27][28][29] studied P Bell sym for W states (|W N = |D N,1 ). In particular, the Authors of Ref.…”
Section: Symmetrized Persistancy Of Bell Correlations For Dicke Statesmentioning
confidence: 99%
“…For details and the one-to-one correspondence of relations (16), (18) to the LHV modelling of the corresponding quantum correlation scenarios on an N -partite quantum state ρ, see Sections 5 and 6 in [22].…”
Section: Quantum Violationmentioning
confidence: 99%