Multi-FPGA Synchronization and Data Communication for Quantum Control and Measurement
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866908404597915648 |
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| author | Xu, Yilun Rajagopala, Abhi D. Fruitwala, Neelay Huang, Gang |
| author_facet | Xu, Yilun Rajagopala, Abhi D. Fruitwala, Neelay Huang, Gang |
| contents | In the last decade, quantum computing has grown from novel physics experiments with a few qubits to commercial systems with hundreds of qubits. As quantum computers continue to grow in qubit count, the classical control systems must scale correspondingly. While a few expensive multi-board commercial solutions exist, most open-source solutions are limited to single-board radio frequency system-on-chip (RFSoC). The essential requirements for a multi-board solution are clock synchronization among multiple boards and the ability to transfer data with low latency for performing real-time feedback. In this work, we design a clock synchronization framework to distribute deterministic clock and synchronize the clock counters across multiple RFSoC boards to generate time-aligned radio frequency (RF) pulses used to control qubits. We also develop a data communication system over a fiber link to transfer quantum measurement data among multiple field-programmable gate arrays (FPGAs). This clock synchronization and data communication module has been integrated into the open-source quantum control system, QubiC, to enable the execution of quantum algorithms across multiple boards. We demonstrate the effectiveness of our design through bench tests with a room-temperature qubit readout emulator. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_09856 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Multi-FPGA Synchronization and Data Communication for Quantum Control and Measurement Xu, Yilun Rajagopala, Abhi D. Fruitwala, Neelay Huang, Gang Quantum Physics In the last decade, quantum computing has grown from novel physics experiments with a few qubits to commercial systems with hundreds of qubits. As quantum computers continue to grow in qubit count, the classical control systems must scale correspondingly. While a few expensive multi-board commercial solutions exist, most open-source solutions are limited to single-board radio frequency system-on-chip (RFSoC). The essential requirements for a multi-board solution are clock synchronization among multiple boards and the ability to transfer data with low latency for performing real-time feedback. In this work, we design a clock synchronization framework to distribute deterministic clock and synchronize the clock counters across multiple RFSoC boards to generate time-aligned radio frequency (RF) pulses used to control qubits. We also develop a data communication system over a fiber link to transfer quantum measurement data among multiple field-programmable gate arrays (FPGAs). This clock synchronization and data communication module has been integrated into the open-source quantum control system, QubiC, to enable the execution of quantum algorithms across multiple boards. We demonstrate the effectiveness of our design through bench tests with a room-temperature qubit readout emulator. |
| title | Multi-FPGA Synchronization and Data Communication for Quantum Control and Measurement |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2506.09856 |