Locally maximally entangleable states and W-type states
Quantum Physics
2013-06-05 v1
Abstract
We investigate the relationship between locally maximally entangleable (LME) states and W-type states which are equivalent to a W state under stochastic local operations and classical communication (SLOCC). We prove that (i) some special W-type states of three qubits are LME; and (ii) no W-type state of four and more qubits is LME. Our results show that the W state of four and more qubits cannot be prepared by using LME states under SLOCC. However, for three qubits some special LME states can be used to prepare the W state under SLOCC.
Keywords
Cite
@article{arxiv.1306.0742,
title = {Locally maximally entangleable states and W-type states},
author = {Ri Qu and Juan Wang and Yan-ru Bao and Zong-shang Li},
journal= {arXiv preprint arXiv:1306.0742},
year = {2013}
}
Comments
6 pages