Implementing quantum control for unknown subroutines
arXiv:1401.8128 · doi:10.1103/PhysRevA.89.030303
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.
5 pages, 5 figures, v2: minor updates to match published version
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Cited by in corpus (45)
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