Design of nanophotonic circuits for autonomous subsystem quantum error correction
arXiv:1102.3143 · doi:10.1088/1367-2630/13/5/055022
Abstract
We reapply our approach to designing nanophotonic quantum memories to formulate an optical network that autonomously protects a single logical qubit against arbitrary single-qubit errors. Emulating the 9 qubit Bacon-Shor subsystem code, the network replaces the traditionally discrete syndrome measurement and correction steps by continuous, time-independent optical interactions and coherent feedback of unitarily processed optical fields.
12 pages, 4 figures