Design and optimization of direct digital frequency synthesis for qubit readout and control
In the context of the gradual obsolescence of Moore's Law, chip manufacturing technology has entered the post-Moore era. Traditional semiconductor technology has encountered physical and economic bottlenecks, making it impossible to continue improving performance by reducing the process s...
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| Format: | Thesis-Master by Coursework |
| Language: | English |
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Nanyang Technological University
2024
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| Online Access: | https://hdl.handle.net/10356/179133 |
| _version_ | 1826121999206842368 |
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| author | Huang, Lingyun |
| author2 | Ng Beng Koon |
| author_facet | Ng Beng Koon Huang, Lingyun |
| author_sort | Huang, Lingyun |
| collection | NTU |
| description | In the context of the gradual obsolescence of Moore's Law, chip manufacturing
technology has entered the post-Moore era. Traditional semiconductor technology
has encountered physical and economic bottlenecks, making it impossible to
continue improving performance by reducing the process size. Quantum computing,
as a cutting-edge technology, leverages the fundamental principles of quantum
mechanics, such as quantum superposition, quantum entanglement, and quantum
interference, showing great potential. Quantum computers, by operating on qubits,
can achieve processing capabilities far beyond classical computers, particularly in
solving complex optimization problems, machine learning, cryptography, and
financial analysis.
In quantum systems, controlling and reading qubits require precise microwave pulses.
These pulse signals must have fast frequency switching characteristics, low phase
noise and high frequency resolution. This thesis provides a detailed introduction to
the design and optimization of waveform generators based on Direct Digital
Synthesizers (DDS), exploring the performance of different waveform generation
methods in terms of chip area, power consumption, and maximum operating
frequency. In this thesis, a new DDS architecture that achieves performance
optimization through techniques such as memory folding, multi-level storage
structure, and rolling window readout in lookup table design is proposed.
Through simulation and synthesis result analysis, the work analyzes and compares
the performance of different DDS architectures in terms of signal quality, system
latency, and power consumption. Several improvement methods are ultimately
proposed, including the introduction of Digital Phase-Locked Loops (DPLL) to
reduce phase noise, the use of Gaussian envelope-modulated microwave pulse
signals to enhance the accuracy of qubit operations, and the optimization of output
signal quality through digital-to-analog converters and low-pass filters. |
| first_indexed | 2024-10-01T05:41:20Z |
| format | Thesis-Master by Coursework |
| id | ntu-10356/179133 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:41:20Z |
| publishDate | 2024 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1791332024-07-26T15:43:32Z Design and optimization of direct digital frequency synthesis for qubit readout and control Huang, Lingyun Ng Beng Koon School of Electrical and Electronic Engineering EBKNg@ntu.edu.sg Engineering In the context of the gradual obsolescence of Moore's Law, chip manufacturing technology has entered the post-Moore era. Traditional semiconductor technology has encountered physical and economic bottlenecks, making it impossible to continue improving performance by reducing the process size. Quantum computing, as a cutting-edge technology, leverages the fundamental principles of quantum mechanics, such as quantum superposition, quantum entanglement, and quantum interference, showing great potential. Quantum computers, by operating on qubits, can achieve processing capabilities far beyond classical computers, particularly in solving complex optimization problems, machine learning, cryptography, and financial analysis. In quantum systems, controlling and reading qubits require precise microwave pulses. These pulse signals must have fast frequency switching characteristics, low phase noise and high frequency resolution. This thesis provides a detailed introduction to the design and optimization of waveform generators based on Direct Digital Synthesizers (DDS), exploring the performance of different waveform generation methods in terms of chip area, power consumption, and maximum operating frequency. In this thesis, a new DDS architecture that achieves performance optimization through techniques such as memory folding, multi-level storage structure, and rolling window readout in lookup table design is proposed. Through simulation and synthesis result analysis, the work analyzes and compares the performance of different DDS architectures in terms of signal quality, system latency, and power consumption. Several improvement methods are ultimately proposed, including the introduction of Digital Phase-Locked Loops (DPLL) to reduce phase noise, the use of Gaussian envelope-modulated microwave pulse signals to enhance the accuracy of qubit operations, and the optimization of output signal quality through digital-to-analog converters and low-pass filters. Master's degree 2024-07-21T23:56:28Z 2024-07-21T23:56:28Z 2024 Thesis-Master by Coursework Huang, L. (2024). Design and optimization of direct digital frequency synthesis for qubit readout and control. Master's thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/179133 https://hdl.handle.net/10356/179133 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering Huang, Lingyun Design and optimization of direct digital frequency synthesis for qubit readout and control |
| title | Design and optimization of direct digital frequency synthesis for qubit readout and control |
| title_full | Design and optimization of direct digital frequency synthesis for qubit readout and control |
| title_fullStr | Design and optimization of direct digital frequency synthesis for qubit readout and control |
| title_full_unstemmed | Design and optimization of direct digital frequency synthesis for qubit readout and control |
| title_short | Design and optimization of direct digital frequency synthesis for qubit readout and control |
| title_sort | design and optimization of direct digital frequency synthesis for qubit readout and control |
| topic | Engineering |
| url | https://hdl.handle.net/10356/179133 |
| work_keys_str_mv | AT huanglingyun designandoptimizationofdirectdigitalfrequencysynthesisforqubitreadoutandcontrol |