Please use this identifier to cite or link to this item:
Title: Security of quantum key distributions with entangled qudits
Authors: Durt, Thomas
Kaszlikowski, Dagomir
Chen, Jing-Ling
Kwek, Leong Chuan
Issue Date: 2004
Citation: Durt, T., Kaszlikowski, D., Chen, J. L., & Kwek, L. C. (2004). Security of quantum key distributions with entangled qudits. Physical Review A, 69(3), 032313.
Abstract: We consider a generalization of Ekert's entanglement-based quantum cryptographic protocol where qubits are replaced by N - or d -dimensional systems (qudits). In order to study its robustness against optimal incoherent attacks, we derive the information gained by a potential eavesdropper during a cloning-based individual attack. In doing so, we generalize Cerf’s formalism for cloning machines and establish the form of the most general cloning machine that respects all the symmetries of the problem. We obtain an upper bound on the error rate that guarantees the confidentiality of qudit generalizations of the Ekert’s protocol for qubits.
ISSN: 1094-1622 (online)
1050-2947 (print)
Other Identifiers: 10.1103/PhysRevA.69.032313
Appears in Collections:Journal Articles

Files in This Item:
File Description SizeFormat 
PRA-69-3-032313.pdf267.02 kBAdobe PDFView/Open
Show full item record

Page view(s)

checked on Nov 18, 2017

Download(s) 50

checked on Nov 18, 2017