Pith. sign in

REVIEW

Quantum nonlocality does not imply entanglement distillability

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1106.4850 v2 pith:ND5JK5VL submitted 2011-06-23 quant-ph

classification quant-ph
keywords entanglementnonlocalityquantumstatedistillabilityentangledimplyalong
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

Entanglement and nonlocality are both fundamental aspects of quantum theory, and play a prominent role in quantum information science. The exact relation between entanglement and nonlocality is however still poorly understood. Here we make progress in this direction by showing that, contrary to what previous work suggested, quantum nonlocality does not imply entanglement distillability. Specifically, we present analytically a 3-qubit entangled state that is separable along any bipartition. This implies that no bipartite entanglement can be distilled from this state, which is thus fully bound entangled. Then we show that this state nevertheless violates a Bell inequality. Our result also disproves the multipartite version of a longstanding conjecture made by Asher Peres.

Discussion (0). Sign in to comment.

Pith tools