Published August 2003
| Version v1
Journal article
Tomographic quantum cryptography
Creators
- 1. Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, (Singapore)
- 2. National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 639798, (Singapore)
Description
We present a protocol for quantum cryptography in which the data obtained for mismatched bases are used in full for the purpose of quantum state tomography. Eavesdropping on the quantum channel is seriously impeded by requiring that the outcome of the tomography is consistent with unbiased noise in the channel. We study the incoherent eavesdropping attacks that are still permissible and establish under which conditions a secure cryptographic key can be generated. The whole analysis is carried out for channels that transmit quantum systems of any finite dimension
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.68.022324;
- arXiv
- arXiv:quant-ph/0305018v1;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 68
- Journal Issue
- 2
- Journal Page Range
- p. 022324-022324.9
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36081991
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CORRELATIONS; ENERGY LEVELS; NOISE; PROBABILITY; QUANTUM MECHANICS; SECRECY PROTECTION; TOMOGRAPHY
- Descriptors DEC
- DIAGNOSTIC TECHNIQUES; MECHANICS
Optional Information
- Notes
- (c) 2003 The American Physical Society