Bound entanglement can maximally violate Bell inequalities
Year: 2004
Type: preprint
Abstract: It is shown that some four-qubit bound entangled states can maximally violate two-setting Bell inequality similar to standard CHSH inequality. Surprisingly this entanglement does not allow for secure key distillation, so neither entanglement nor violation of Bell inequalities implies quantum security. It is also pointed out how that kind of bound entanglement can be useful in reducing communication complexity.
Source: arXiv (Cornell University)
Authors: Remigiusz Augusiak, Paweł Horodecki
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2563960643