QubiC - An open FPGA based Qubit Control system*

As the number of qubits increases, the flexibility and scalability of the control system become one of the issues limiting the experiments to expand. We developed an FPGA based qubit control system named QubiC. The system generates the physical RF pulses which implemented the quantum algorithm and process the readout and present them to the higher level. Multiple FPGAs can be synchronized via optical fiber, making the system scalable.
As a proof of concept, we build a module with the COTS FPGA carrier boards and DAC/ADC boards together with analog frontend boards. We developed the firmware and software to implement the algorithm and demonstrate the basic functionality. In this talk, we describe the system structure, the firmware implementation and the design of the analog front end boards.