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Since the API guarantees that all Requests in one Context are correctly serialized,
the Request handler function of a Server Module can always assume exclusive
access to the associated Context data. This makes it extremely straightforward to
write Servers that behave as if they were multi-threaded without having to worry
about the headaches associated with memory access race conditions.
7.5 Our Setup
Taking a closer look at the LabRAD setup used for this experiment will help
shed more light on the some of the concepts explained above. The setup consists
of several layers of hardware abstraction and makes use of pipelining, parallel processing,
and load-sharing to achieve essentially experiment-limited performance.
The full LabRAD setup handles almost everything in the lab including the
monitoring and control of the dilution and adiabatic demagnetization refrigerators.
But for the purposes here, a look at only the parts directly relevant to the
qubit operation shall suffice since the employed concepts are mostly the same.
7.5.1 Overview
As detailed in the previous chapters, the two qubits each use two “DC” lines
for the flux and squid bias, one high-speed line for measure pulses and Z-rotations,
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