Non-Markovian effect on remote state preparation
Abstract
Memory effect of non-Markovian dynamics in open quantum systems is often believed to be beneficial for quantum information processing. In this work, we employ an experimentally controllable two-photon open system, with one photon experiencing a dephasing environment and the other being free from noise, to show that non-Markovian effect may also have a negative impact on quantum tasks such as remote state preparation: For a certain period of controlled time interval, stronger non-Markovian effect yields lower fidelity of remote state preparation, as opposed to the common wisdom that more information leads to better performance. As a comparison, a positive non-Markovian effect on the RSP fidelity with another typical non-Markovian noise is analyzed. Consequently, the observed dual character of non-Markovian effect will be of great importance in the field of open systems engineering.
Keywords
Cite
@article{arxiv.1310.1784,
title = {Non-Markovian effect on remote state preparation},
author = {Zhen-Yu Xu and Chen Liu and Shunlong Luo and Shiqun Zhu},
journal= {arXiv preprint arXiv:1310.1784},
year = {2015}
}
Comments
7 pages, 5 figures