The entanglement criterion of multiqubits
Quantum Physics
2007-05-23 v2
Abstract
We present an entanglement criterion for multiqubits by using the quantum correlation tensors which rely on the expectation values of the Pauli operators for a multiqubit state. Our criterion explains not only the total entanglement of the system but also the partial entanglement in subsystems. It shows that we have to consider the subsystem entanglements in order to obtain the full description for multiqubit entanglements. Furthermore, we offer an extension of the entanglement to multiqudits.
Cite
@article{arxiv.quant-ph/0506127,
title = {The entanglement criterion of multiqubits},
author = {Hyuk-jae Lee and Sung Dahm Oh and Doyeol Ahn},
journal= {arXiv preprint arXiv:quant-ph/0506127},
year = {2007}
}
Comments
7 pages, No figure