Complementarity and the algebraic structure of 4-level quantum systems
Mathematical Physics
2009-11-13 v1 math.MP
Abstract
The history of complementary observables and mutual unbiased bases is reviewed. A characterization is given in terms of conditional entropy of subalgebras. The concept of complementarity is extended to non-commutative subalgebras. Complementary decompositions of a 4-level quantum system are described and a characterization of the Bell basis is obtained.
Cite
@article{arxiv.0802.2391,
title = {Complementarity and the algebraic structure of 4-level quantum systems},
author = {D. Petz and A. Szanto and M. Weiner},
journal= {arXiv preprint arXiv:0802.2391},
year = {2009}
}
Comments
19 pages