Relaxation Method For Calculating Quantum Entanglement
Abstract
In a previous paper, we showed how entanglement of formation can be defined as a minimum of the quantum conditional mutual information (a.k.a. quantum conditional information transmission). In classical information theory, the Arimoto-Blahut method is one of the preferred methods for calculating extrema of mutual information. In this paper, we present a new method, akin to the Arimoto-Blahut method, for calculating entanglement of formation. We also present several examples computed with a computer program called Causa Comun that implements the ideas of this paper.
Keywords
Cite
@article{arxiv.quant-ph/0101123,
title = {Relaxation Method For Calculating Quantum Entanglement},
author = {Robert R. Tucci},
journal= {arXiv preprint arXiv:quant-ph/0101123},
year = {2007}
}
Comments
25 pages (files: 1 .tex, 2 .eps, 2 .sty) 95% same paper. Corrected minor mistakes and typos. Made many small changes to make more user friendly. Added simple but useful ideas about convexity