Optimal eavesdropping in cryptography with three-dimensional quantum states

Preprint

22 June 2001

preprint
Published by arXiv in arXiv

Abstract

We study optimal eavesdropping in quantum cryptography with three-dimensional systems, and show that this scheme is more secure than protocols using two-dimensional states. We generalize the according eavesdropping transformation to arbitrary dimensions, and discuss the connection with optimal quantum cloning.

Keywords

EAVESDROPPING IN CRYPTOGRAPHY
EAVESDROPPING TRANSFORMATION
OPTIMAL EAVESDROPPING
DIMENSIONAL SYSTEMS
DIMENSIONAL QUANTUM
QUANTUM STATES
SECURE THAN

All Related Versions

Version 1, 2001-06-22, ArXiv
Version 2, 2002-03-19, ArXiv
Published version: Physical Review Letters, 88 (12), 127901.

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