We propose a feasible scheme of quantum state storage and manipulation via electromagnetically induced transparency (EIT) in flexibly united multi-ensembles of three-level atoms. For different atomic array configurations, one can properly steer the signal and the control lights to generate different forms of atomic entanglement within the framework of linear optics. These results shed new light on designing the versatile quantum memory devices by using, e.g., an atomic grid.
@article{arxiv.quant-ph/0410038,
title = {Correlated Quantum Memory: Manipulating Atomic Entanglement via Electromagnetically Induced Transparency},
author = {H. Jing and X. -J. Liu and M. -L. Ge and M. -S. Zhan},
journal= {arXiv preprint arXiv:quant-ph/0410038},
year = {2009}
}