Additive entanglemement measures cannot be more than asymptotically continuous
Quantum Physics
2019-10-28 v1 High Energy Physics - Theory
Mathematical Physics
math.MP
Abstract
In this short note, we show that any non-constant quantity defined on density matrices that is additive on tensor products and invariant under permutations cannot be "more than asymptotically continuous." The proof can be adapted to show that any additive entanglement measure (on any number of parties) that is invariant under local unitary operations also cannot be more than asymptotically continuous. The proof is a direct consequence of generalizing a protocol in arXiv:0804.4118 for embezzling entanglement.
Cite
@article{arxiv.1910.11354,
title = {Additive entanglemement measures cannot be more than asymptotically continuous},
author = {Andrea Coladangelo and Debbie Leung},
journal= {arXiv preprint arXiv:1910.11354},
year = {2019}
}