Implementing quantum control for unknown subroutines
Quantum Physics
2014-03-14 v2
Abstract
We present setups for the practical realization of adding control to unknown subroutines, supplementing the existing quantum optical scheme for black-box control with a counterpart for the quantum control of the ordering of sequences of operations. We also provide schemes to realize either task using trapped ions. These practical circumventions of recent no-go theorems are based on existing technologies. We argue that the possibility to add control to unknown operations in practice is a common feature of many physical systems. Based on the proposed implementations we discuss the apparent contradictions between theory and practice.
Cite
@article{arxiv.1401.8128,
title = {Implementing quantum control for unknown subroutines},
author = {Nicolai Friis and Vedran Dunjko and Wolfgang Dür and Hans J. Briegel},
journal= {arXiv preprint arXiv:1401.8128},
year = {2014}
}
Comments
5 pages, 5 figures, v2: minor updates to match published version