publication . Other literature type . Article . Preprint . 2018

Device-Independent Entanglement Certification of All Entangled States

Bowles, Joseph; Šupić, Ivan; Cavalcanti, Daniel; Acín, Antonio;
  • Published: 29 Oct 2018
  • Publisher: American Physical Society (APS)
Abstract
We present a method to certify the entanglement of all bipartite entangled quantum states in a device-independent way. This is achieved by placing the state in a quantum network and constructing a correlation inequality based on an entanglement witness for the state. Our method is device-independent, in the sense that entanglement can be certified from the observed statistics alone, under minimal assumptions on the underlying physics. Conceptually, our results borrow ideas from the field of self-testing to bring the recently introduced measurement-device-independent entanglement witnesses into the fully device-independent regime.
Subjects
ACM Computing Classification System: TheoryofComputation_GENERAL
free text keywords: Condensed matter physics, Quantum state, Correlation inequality, Quantum network, Physics, Bipartite graph, Quantum entanglement, Entanglement witness, Theoretical physics, Quantum Physics
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publication . Other literature type . Article . Preprint . 2018

Device-Independent Entanglement Certification of All Entangled States

Bowles, Joseph; Šupić, Ivan; Cavalcanti, Daniel; Acín, Antonio;