Fig. 3: Trapped-ion QDevice implementation.
From: An operating system for executing applications on quantum network nodes
Schematic of our implementation of QNodeOS on a single-node setup in which the QDevice contains a single trapped-ion qubit. The QNPU QDriver is implemented on a field-programmable gate array (FPGA) that connects to its QDevice through a SPI (Methods). The setup consists of an emulator that translates between SPI messages and TTL signals, experimental control hardware that includes a FPGA and direct digital synthesis (DDS) modules, a trapped-ion qubit60 under ultrahigh vacuum (Fig. 1) and a photomultiplier tube (PMT) that registers atomic fluorescence.
