Controlled quantum teleportation in the presence of an adversary

Gangopadhyay S., Wang T., Mashatan A., Ghose S.

Physical Review A, vol.106, no.5, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 106 Issue: 5
  • Publication Date: 2022
  • Doi Number: 10.1103/physreva.106.052433
  • Journal Name: Physical Review A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH, DIALNET
  • TED University Affiliated: No

Abstract

© 2022 American Physical Society. We present a device-independent analysis of controlled quantum teleportation where the receiver is not trusted. We show that the notion of genuine tripartite nonlocality allows us to certify control power in such a scenario. By considering a specific adversarial attack strategy on a device characterized by depolarizing noise, we find that control power is a monotonically increasing function of genuine tripartite nonlocality. These results are relevant for building practical quantum communication networks and also shed light on the role of nonlocality in multipartite quantum information processing.