Quantum cryptography based on qutrit Bell inequalities

D Kaszlikowski, D K L Oi, M Christandl, K Chang, A Ekert, L C Kwek, C H Oh

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)
24 Downloads (Pure)


We present a cryptographic protocol based upon entangled qutrit pairs. We analyze the scheme under a symmetric incoherent attack and plot the region for which the protocol is secure and compare this with the region of violations of certain Bell inequalities.

Original languageEnglish
Article number012310
Pages (from-to)-
Number of pages4
JournalPhysical Review A
Issue number1
Publication statusPublished - Jan 2003


  • local realism
  • multiport
  • qubits


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