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arXiv · 1306.0742

Locally maximally entangleable states and W-type states

Ri Qu·Juan Wang·Yan-ru Bao·Zong-shang Li
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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.

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Ri Qu, Juan Wang, Yan-ru Bao, Zong-shang Li. 2013-06-04. Locally maximally entangleable states and W-type states. https://arxiv.org/abs/1306.0742

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