Extracting an arbitrary relative phase from a multiqubit two-component entangled state
量子物理
2009-11-11 v1
摘要
We show that an arbitrary relative phase can be extracted from a multiqubit two-component (MTC) entangled state by local Hadamard transformations and measurements along a single basis only. In addition, how to distinguish a MTC entangled state with an arbitrary entanglement degree and relative phase from a class of multiqubit mixed states is discussed.
引用
@article{arxiv.quant-ph/0505201,
title = {Extracting an arbitrary relative phase from a multiqubit two-component entangled state},
author = {Chui-Ping Yang and Siyuan Han},
journal= {arXiv preprint arXiv:quant-ph/0505201},
year = {2009}
}
备注
4 pages, REVTEX, accepted by Physical Review A