Quantum strong subadditivity condition for systems without subsystems
Quantum Physics
2015-06-18 v1
Abstract
The strong subadditivity condition for the density matrix of a quantum system, which does not contain subsystems, is derived using the qudit-portrait method. An example of the qudit state in the seven-dimensional Hilbert space corresponding to spin j = 3 is presented in detail. New entropic inequalities in the form of subadditivity condition and strong subadditivity condition for spin tomograms determining the qudit states are obtained and given on examples of j = 2 and 3.
Cite
@article{arxiv.1312.6988,
title = {Quantum strong subadditivity condition for systems without subsystems},
author = {Margarita A Man'ko and Vladimir I Man'ko},
journal= {arXiv preprint arXiv:1312.6988},
year = {2015}
}
Comments
9 pages, submitted to Journal of Physics: Conference Series