  The use of analog classical systems for computation is generally thought to
be a difficult proposition due to the susceptibility of these devices to noise
and the lack of a clear framework for achieving fault-tolerance. We present
experimental results for the application of quantum error correction (QEC)
techniques to a prototype analog computational device called a quantum
emulation device. It is shown that for the gates tested (transversal $Z$, $X$
and $SH$) there is a marked improvement in the performance characteristics of
the gate operations following error correction using the 5-Qubit Perfect code.
In the case of the $Z$ gate, the median fidelity improved from 0.995 to
0.99998, a reduction in the gate error by over two orders of magnitude. Other
transverse gates similarly show strong improvements.
