Transmitting quantum information by superposing causal order of mutually unbiased measurements
Quantum Physics
2019-10-01 v1 Information Theory
General Relativity and Quantum Cosmology
math.IT
Abstract
Two quantum measurements sequentially acting one after the other, if they are mutually unbiased, will lead to a complete removal of information encoded in the input quantum state. We find that if the order of the two sequential measurements can be superposed, with a quantum switch, then the information encoded in the input can still be retained in the output state.
Keywords
Cite
@article{arxiv.1909.13125,
title = {Transmitting quantum information by superposing causal order of mutually unbiased measurements},
author = {Manish K. Gupta and Ujjwal Sen},
journal= {arXiv preprint arXiv:1909.13125},
year = {2019}
}
Comments
8 Pages, 1 figure