Quantum Information transmission
Abstract
We present a scheme of quantum information transmission, which transmits the quantum information contained in a single qubit via the quantum correlation shared by two parties (a two-qubit channel), whose quantum discord is non-zero. We demonstrate that the quantum correlation, which may have no entanglement, is sufficient to transmit the information of a quantum state. When the correlation matrix of the two-qubit channel is of full rank (rank three), the information of the qubit in either a mixed state or a pure state can be transmitted. The quantum discord of a channel with rank larger than or equal to three is always non-zero. Therefore, non-zero quantum discord is also necessary for our quantum information transmission protocol.
Cite
@article{arxiv.1106.5097,
title = {Quantum Information transmission},
author = {Lei Wang and Jie-Hui Huang and Jonathan P. Dowling and Shi-Yao Zhu},
journal= {arXiv preprint arXiv:1106.5097},
year = {2012}
}
Comments
8pages,2 figures