On the Distinguishability of Relativistic Quantum States in Quantum Cryptography
Quantum Physics
2007-05-23 v1
Abstract
Relativistic quantum field theory imposes additional fundamental restrictions on the distinguishability of quantum states. Because of the unavoidable delocalization of the quantum field states in the Minkowski space-time, the reliable (with unit probability) distinguishability of orthogonal states formally requires infinite time. For the cryptographic protocols which are finite in time the latter means that the effective ``noise'' is present even in the ideal communication channel because of the non-localizability of the quantum field states.
Keywords
Cite
@article{arxiv.quant-ph/0006010,
title = {On the Distinguishability of Relativistic Quantum States in Quantum Cryptography},
author = {R. Laiho and S. N. Molotkov and S. S. Nazin},
journal= {arXiv preprint arXiv:quant-ph/0006010},
year = {2007}
}
Comments
13 pages, 1 figure