Quantum key distribution using multilevel encoding
2001 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 6401, no 1Article in journal (Refereed) Published
In this article, protocols for quantum key distribution based on encoding in higher dimensional systems in N-dimensional Hilbert space are proposed. We extend the original Bennett-Brassard protocol using two complementary bases and two-dimensional states to M mutually complementary bases and N orthogonal vectors in each base. We study the mutual information between the legitimate parties and the eavesdropper and the error rate by considering various incoherent eavesdropping attacks as a function of the dimension of the Hilbert space.
Place, publisher, year, edition, pages
2001. Vol. 6401, no 1
cryptography, states, qubits
IdentifiersURN: urn:nbn:se:kth:diva-20761ISI: 000169711400025OAI: oai:DiVA.org:kth-20761DiVA: diva2:339458
QC 201005252010-08-102010-08-10Bibliographically approved