Giuseppe La Capra
Development of FPGA Based Instrumentation for Readout and Control of Superconducting Qubits.
Rel. Fabrizio Riente, Claudio Gatti, Andrea Giachero. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering), 2025
Abstract
Quantum computing has the potential to revolutionize relevant application areas, such as optimization, cryptography, and machine learning, addressing problems that are beyond the reach of classical computing. However, despite rapid progress, significant challenges remain, particularly in qubit control infrastructures. Existing commercial solutions are highly customized, prohibitively expensive, tightly coupled to specific quantum processing units (QPUs), and lack portability, scalability, and flexibility. In recent years however, open- source projects have emerged that leverage preexisting commercial products to provide low-cost solutions. This thesis presents the design of an FPGA (Field Programmable Gate Array) based instrumentation that, similarly to other open-source solutions, exploits commercially available Xilinx RFSoCs, originally developed for 5G communication, to generate and acquire radio frequency modulated electrical pulses needed for the control and readout of the state of superconducting qubits.
By leveraging the Analog-to-Digital and Digital-to-Analog converters present on the FPGA, direct digital control over all signals is achieved, which allows for precise waveform generation and modulation, and for repeatable signal acquisition; core design goals alongside speed and scalability
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