We present a scheme in which any pure qubit ∣ϕ=cosθ∣0+sinθei\varphi∣1 could be remotely prepared by using minimum classical bits and the previously shared non-maximally entangled states, on condition that the receiver holds the knowledge of θ. Several methods are available to check the trade-off between the necessary entanglement resource and the achievable fidelity.
@article{arxiv.quant-ph/0410190,
title = {Remote state preparation using non-maximally entangled states},
author = {Lin Chen and Yi-Xin Chen},
journal= {arXiv preprint arXiv:quant-ph/0410190},
year = {2007}
}