Probability representation and quantumness tests for qudits and two-mode light states
Quantum Physics
2009-12-23 v1
Abstract
Using tomographic-probability representation of spin states, quantum behavior of qudits is examined. For a general j-qudit state we propose an explicit formula of quantumness witnetness whose negative average value is incompatible with classical statistical model. Probability representations of quantum and classical (2j+1)-level systems are compared within the framework of quantumness tests. Trough employing Jordan-Schwinger map the method is extended to check quantumness of two-mode light states.
Cite
@article{arxiv.0909.2746,
title = {Probability representation and quantumness tests for qudits and two-mode light states},
author = {S. N. Filippov and V. I. Man'ko},
journal= {arXiv preprint arXiv:0909.2746},
year = {2009}
}
Comments
5 pages, 2 figures, PDFLaTeX, Contribution to the 11th International Conference on Squeezed States and Uncertainty Relations (ICSSUR'09), June 22-26, 2009, Olomouc, Czech Republic