GHZ paradoxes based on an even number of qubits
arXiv:1208.5741 · doi:10.1016/j.physleta.2012.12.041
Abstract
GHZ paradoxes are presented for all even numbers of qubits from four up. They are obtained from proofs of the Kochen-Specker (KS) theorem by showing how the assumption of noncontextuality can be justified on the basis of locality. The nature of the entangled states involved in our paradoxes is discussed. Some multiqubit proofs of the KS theorem are also presented in the form of diagrams from which they are visually obvious. The implications of our results are discussed.
Caption to Fig.1 has been expanded, as have explanatory footnotes in Refs.13 and 14, in response to reviewer comments
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Cited by in corpus (10)
- Kochen-Specker Contextuality
- Quantifying Contextuality
- Proofs of the Kochen-Specker theorem based on the N-qubit Pauli group
- Rotational covariance and GHZ contradictions for three or more particles of any dimension
- Mermin pentagrams arising from Veldkamp lines for three qubits
- The magic three-qubit Veldkamp line: A finite geometric underpinning for form theories of gravity and black hole entropy
- Primitive Nonclassical Structures of the -qubit Pauli Group
- Device-independent Verification of Quantum Coherence without Quantum Control
- Irreducible magic sets for -qubit systems
- Nonclassical Structures within the N-qubit Pauli Group