Harmony for 2-Qubit Entanglement
Quantum Physics
2019-06-25 v1 High Energy Physics - Theory
Abstract
In this Letter we present a new quantity that shows whether two general qubit systems are entangled, which we call harmony. It captures the notion of separability and maximal entanglement. It is also shown that harmony is monogamous for 3-qubit states. Thus, harmony serves as a new entanglement measure. In addition, since it is written as a simple function of the density operator, it is in practice easier to compute than other previously known measures.
Cite
@article{arxiv.1906.09273,
title = {Harmony for 2-Qubit Entanglement},
author = {Kento Osuga and Don N. Page},
journal= {arXiv preprint arXiv:1906.09273},
year = {2019}
}
Comments
7 pages