Quantum cryptography with 3-state systems

Authors
Bechmann-Pasquinucci, H Peres, A
Citation
H. Bechmann-pasquinucci et A. Peres, Quantum cryptography with 3-state systems, PHYS REV L, 85(15), 2000, pp. 3313-3316
Citations number
15
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
85
Issue
15
Year of publication
2000
Pages
3313 - 3316
Database
ISI
SICI code
0031-9007(20001009)85:15<3313:QCW3S>2.0.ZU;2-C
Abstract
We consider quantum cryptographic schemes where the carriers of information are 3-state particles. One protocol uses four mutually unbiased bases and appears to provide better security than obtainable with a-state carriers. A nother possible method allows quantum states to belong to more than one bas is. Security is not better, but many curious features arise.